EN 60745-2-3:2007

SLOVENSKI STANDARD
01-november-2007
1DGRPHãþD
SIST EN 50144-2-3:2002
SIST EN 50144-2-3:2002/A1:2003
SIST EN 50144-2-3:2002/A2:2003
(OHNWULþQDURþQDRURGMD9DUQRVWGHO3RVHEQH]DKWHYH]DEUXVLOQLNH
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Hand-held motor-operated electric tools - Safety -- Part 2-3: Particular requirements for
grinders, polishers and disk-type sanders
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit -- Teil 2-3: Besondere
Anforderungen für Schleifer, Polierer und Schleifer mit Schleifblatt
Outils électroportatifs à moteur - Sécurité -- Partie 2-3: Règles particulières pour les
meuleuses, lustreuses et ponceuses du type à disque
Ta slovenski standard je istoveten z: EN 60745-2-3:2007
ICS:
25.080.50 Brusilni in polirni stroji Grinding and polishing
machines
25.140.20 (OHNWULþQDRURGMD Electric tools
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60745-2-3
NORME EUROPÉENNE
March 2007
EUROPÄISCHE NORM
ICS 25.140.20 Supersedes EN 50144-2-3:2002 + A1:2002 + A2:2003

English version
Hand-held motor-operated electric tools -
Safety -
Part 2-3: Particular requirements for grinders,
polishers and disk-type sanders
(IEC 60745-2-3:2006, modified)

Outils électroportatifs à moteur -  Handgeführte motorbetriebene
Sécurité - Elektrowerkzeuge -
Partie 2-3: Règles particulières Sicherheit -
pour les meuleuses, lustreuses Teil 2-3: Besondere Anforderungen
et ponceuses du type à disque für Schleifer, Polierer und Schleifer
(CEI 60745-2-3:2006, modifiée) mit Schleifblatt
(IEC 60745-2-3:2006, modifiziert)

This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60745-2-3:2007 E
Foreword
The text of the International Standard IEC 60745-2-3:2006, prepared by SC 61F, Safety of
hand-held motor-operated electric tools, of IEC TC 61, Safety of household and similar electrical
appliances, together with the common modifications prepared by the Technical Committee
CENELEC TC 61F, Safety of hand-held and transportable motor-operated electric tools, was
submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60745-2-3
on 2006-12-01.
This European Standard supersedes EN 50144-2-3:2002 + A1:2002 + A2:2003.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-12-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-12-01
This standard is divided into two parts:
Part 1: General requirements which are common to most hand-held electric motor operated
tools (for the purpose of this standard referred to simply as tools) which could come
within the scope of this standard;
Part 2: Requirements for particular types of tools which either supplement or modify the
requirements given in Part 1 to account for the particular hazards and characteristics
of these specific tools.
This European Standard has been prepared under a mandate given to CENELEC by the
European Commission and the European Free Trade Association and covers essential
requirements of EC Directive 98/37/EC (Machinery Directive), amended by Directive 98/79/EC.
See Annex ZZ.
Compliance with the clauses of Part 1 together with this Part 2 provides one means of conforming
with the essential health and safety requirements of the Directive concerned.
CEN/TC 255 is producing standards for non-electric grinders (EN 792-7), polishers and sanders
(EN 792-8) and die grinders (EN 792-9).
Warning: Other requirements and other EC Directives can be applicable to the products falling
within the scope of this standard.
This standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2.
This Part 2-3 is to be used in conjunction with EN 60745-1:2006. When this standard states
"addition", "modification" or "replacement", the relevant text in Part 1 is to be adapted accordingly.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting
from 101.
Subclauses, tables and figures which are additional to those in IEC 60745-2-3:2006 are
prefixed “Z”.
Annexes ZA and ZZ have been added by CENELEC.

– 3 – EN 60745-2-3:2007
NOTE In this standard the following print types are used:
- Requirements proper;
- Test specifications;
- Explanatory matter.
Endorsement notice
The text of the International Standard IEC 60745-2-3:2006 was approved by CENELEC as a
European Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
6 Void
Replace by:
6 Environmental requirements
This clause of Part 1 is applicable except as follows:
6.1.2.4 Modification:
Grinders, polishers and disk-type sanders are suspended. For angle and vertical tools, the wheel
or pad shall be horizontal. For straight tools, the wheel or pad shall be vertical.
6.1.2.5 Modification:
Grinders, polishers and disk-type sanders are tested at no-load.
6.2.4.2 Location of measurement
Addition:
Figures Z104 to Z106 show the positions for different types of tools.
6.2.6.3 Operating conditions
Addition:
The weight of the tool is considered the weight of the complete tool as prepared for the test with
all equipment needed for normal use and with the artificial wheel mounted, but without the cable.
6.2.6.3.101 Grinding
Tools for grinding applications shall be tested under load by using the artificial wheel under the
conditions described below in Table Z101 for angle grinding and in Table Z104 for straight
grinding.
– 5 – EN 60745-2-3:2007
Table Z101 – Test conditions for angle grinding
Orientation Tool to be held as in normal use for grinding a horizontal plate.
Tool bit Artificial wheel as specified in Figure Z102 of a diameter equivalent to
the rated capacity and dimensions in accordance with Table Z102.
When using the artificial wheel, start with a diameter (e -1 mm) and
increase the size at the hole in stages of 1/10 mm until the required
unbalance is obtained.
Feed force Applied at a position as close as that in normal use.
The feed force is specified in Table Z103 and obtained by applying an
upward force equal to the sum of the intended feed force and the weight
of the tool.
The upward force is normally applied using the threaded holes for the
support handle. For tools where the support handle can be mounted on
either side, insert an extra bolt in the empty hole. Fix a short sling of
cord from the extra bolt to the inner part of the support handle. Fix the
cord used for applying the upward force in that sling.
On tools with antivibration handles, the sling shall be attached between
the tool body and the handle without blocking the antivibration function.
The tool being suspended on a cord, the force can be applied using a
weight (see Figure Z101) or, alternatively, a dynamometer can be
attached to the cord. The application of force shall be achieved with
minimum adaptation to the machine.
NOTE Any weight added to the tool e.g. fixing devices for the upward force will alter the
inertia of the tool and thereby reduce the vibration magnitude.
Test cycle A test cycle is given by conducting a measurement for at least 10 s.
After each test the wheel shall be loosened and repositioned

360° / 5 = 72° from its previous position on the shaft.
Three series of five consecutive tests shall be carried out using a
different operator for each series.

Table Z102 – Dimensions of the artificial wheel of Figure Z102 for angle grinding
ø a ø b c ø d ø e Unbalance
mm mm mm mm mm g mm
50 ± 0,2 10,0 6 ± 0,05 35 ± 0,02 8,1 14,5
100 ± 0,2 16,0 6 ± 0,05 70 ± 0,02 11,4 58
115 ± 0,2 22,23 6 ± 0,05 80 ± 0,02 12,2 76
125 ± 0,2 22,23 6 ± 0,05 90 ± 0,02 12,5 90
150 ± 0,2 22,23 6 ± 0,05 120 ± 0,02 13,0 130
180 ± 0,2 22,23 6 ± 0,05 150 ± 0,02 14,1 190
230 ± 0,2 22,23 6 ± 0,05 200 ± 0,02 15,5 305
300 ± 0,2 22,23 6 ± 0,05 270 ± 0,02 17,4 520

Table Z103 – Feed force
ø a
50 80 100 115 125 150 180 200 230 300
mm
Feed force
15 15 40 40 40 40 60 60 60 60
N (± 5 N)
Table Z104 – Test conditions for straight grinding
Orientation Tool to be held as in normal use for grinding a horizontal plate.
For grinders with a rated capacity up to or equal 55 mm, the test shall be
carried out under load by using the artificial wheel.
For grinders with a rated capacity exceeding 55 mm diameter, the test
shall be carried out under load by using the artificial wheel, but at the
speed achieved at under normal load (for example by reducing the
supply voltage).
Tool bit Artificial wheel as specified in Figure Z103 of a diameter equivalent to
the rated capacity and dimensions in accordance with Table Z105.
When using the artificial wheel, start with a diameter (e -1 mm) and
increase the size at the hole in stages of 1/10 mm until the required
unbalance is obtained.
Feed force Applied at a position as close as that in normal use.
For a rated capacity less than or equal to 55 mm, the feed force is 20 N,
and for a rated capacity exceeding 55 mm, the feed force is 50 N.
The feed force is obtained by applying an upward force equal to the sum
of the intended feed force and the weight of the tool.
The upward force is applied to the front part of the handle or gripping
area closest to the wheel.
On tools with antivibration handles, the upward force shall be applied
without blocking the antivibration function.
The force can be applied using a weight (see Figure Z101) or,
alternatively, a dynamometer can be attached. The application of force
shall be achieved with minimum adaptation to the machine.
NOTE Any weight added to the tool e.g. fixing devices for the upward force will alter the
inertia of the tool and thereby reduce the vibration magnitude.
Test cycle A test cycle is given by conducting a measurement for at least 10 s.

– 7 – EN 60745-2-3:2007
Table Z105 – Dimensions of the artificial wheel of Figure Z103 for straight grinding
ø a ø b c ø d ø e Unbalance
mm mm mm mm mm g mm
25 ± 0,2 4,0 10 ± 0,05 18 ± 0,02 4,3 3,6
50 ± 0,2 4,0 10 ± 0,05 35 ± 0,02 6,2 14,5
80 ± 0,2 4,0 10 ± 0,05 65 ± 0,02 7,1 37
100 ± 0,2 19,0 25 ± 0,05 70 ± 0,02 5,6 58
125 ± 0,2 19,0 25 ± 0,05 90 ± 0,02 6,1 90
150 ± 0,2 19,0 25 ± 0,05 120 ± 0,02 6,4 130
200 ± 0,2 19,0 25 ± 0,05 170 ± 0,02 7,1 230

6.2.6.3.102 Polishing
Tools for polishing applications are tested under load and under the conditions described below in
Table Z106.
Table Z106 – Test conditions for polishing
Orientation Polishing a horizontal steel plate of min. 200 mm x 200 mm x 20 mm
mounted on a bench
Tool bit Polishing pad
Feed force 50 N ± 5 N (in addition to the weight of the tool) or the force necessary
to obtain rated input, whichever is the lower
Test cycle A test cycle is given by conducting a measurement for at least 10 s

6.2.6.3.103 Disc-type sanding
Tools for disc-type sanding applications are tested under load and under the conditions described
below in Table Z107.
Table Z107 – Test conditions for disc-type sanding
Orientation Sanding a horizontal steel plate of min. 200 mm x 200 mm x 20 mm
mounted on a bench
Tool bit Recommended sanding disc for steel with a grain size of 180
Feed force 30 N ± 5 N (in addition to the weight of the tool)
Pre-test requirements With a new sanding disc carry out 1 min sanding before starting
measurements
Test cycle A test cycle is given by conducting a measurement for at least 10 s

6.2.6.4 Operator
Replacement:
The vibration of the machine is influenced by the operators. The operators shall therefore be
skilled enough to be able to hold the tool in a manner similar to that used in real grinding. Also the
angle of attack should equal to that used in real grinding on a horizontal surface (e.g. for angle
grinders 20° ± 5°).
The forces and torques applied to the handles influence the vibration. It is therefore important that
the force and torque distribution between the handles equals that in real use.
6.2.7.1 Reported vibration value
Addition:
If more than one operating mode was measured, the result a for each operating mode applicable
h
shall be reported.
a or a = mean vibration for straight grinding or angle grinding in accordance with
h,SG h,AG
6.2.6.3.101
a = mean vibration for polishing in accordance with 6.2.6.3.102
h,P
a = mean vibration for disc-type sanding in accordance with 6.2.6.3.103
h,DS
Underestimation of the vibration for tools equipped with technical means to automatically reduce
unbalances shall be taken into account by multiplying the vibration values of such tools with a
correction factor of 1,3.
In cases, where the measurement was done at practical use with specific discs, information about
the operating conditions (such as specification of the disk used, work piece material, feed force)
shall be reported.
6.2.7.2 Declaration of the vibration emission value
Addition:
For the following applications of the tool, if recommended in the instruction manual, the vibration
emission values of the handle with the highest emission and the uncertainty K shall be declared:
- for grinding applications
the value of a or a with the work mode description “surface grinding”;
h,SG h,AG
- for polishing applications
the value of a with the work mode description “polishing”;
h,P
- for disc type sanding applications
the value of a with the work mode description “disc sanding”.
h,DS
In addition, the information shall be given in the instruction manual that other applications such as
cutting-off or wire brushing, may have different vibration emission values.
21 Construction
21.Z1 Addition:
Disc-type sanders exclusively for sanding wooden floors are considered to be tools where a
considerable amount of dust is produced.
Replace 21.18.1 by the following:
21.18.1 Replacement:
The switch shall be of momentary contact type.
For single phase angle grinders with a rated capacity greater than 155 mm and for single phase
straight grinders with a rated capacity greater than 130 mm, either

– 9 – EN 60745-2-3:2007
- the mains switch shall automatically switch off the motor as soon as the actuating member of
the switch is released and shall have no locking arrangement in the “on” position
or
- the tool shall not restart after an interruption of the mains supply without releasing and
reactuating the switch. In this case, a lock-on device is allowed provided that two dissimilar
actions are necessary to lock the switch in the “on” position. In addition, only a single motion
to the actuating member of the switch shall be required for the switch to automatically return to
the “off” position.
For all other tools, a lock-on device is allowed provided that two dissimilar actions are necessary
to lock the switch in the “on” position. In addition, only a single motion to the actuating member of
the switch shall be required for the switch to automatically return to the “off” position.
Compliance is checked by inspection and manual test.
Bibliography
Add the following note under IEC 60745-2-4:
NOTE Harmonized as EN 60745-2-4:2003 (not modified).

Add the following new figures:

Key
1 Weight of grinder
2 Feed force weight
3 Application of feed force using a sling of cord
4 Grinder is suspended at an angle of 20° ± 5° to the horizontal
Figure Z101 – Working positions of operator and application of force

– 11 – EN 60745-2-3:2007
Dimensions in milimetres
Figure Z102 – Artificial grinding wheel for angle grinding

Dimensions in milimetres
Figure Z103 – Artificial grinding wheel for straight grinding

– 13 – EN 60745-2-3:2007
Figure Z104 – Positions of transducers for straight grinders

Figure Z105 – Positions of transducers for angle grinders
..
Figure Z106 – Positions of transducers for polishers and disk-type sanders

Add the following annexes:
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.

NOTE Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year

ISO 603-12 1999 Bonded abrasive products – Dimensions – - -
Part 12: Grinding wheels for deburring and
fettling on a straight grinder
ISO 603-14 1999 Bonded abrasive products – Dimensions – - -
Part 14: Grinding wheels for deburring and
fettling/snagging on an angle grinder
ISO 603-16 1999 Bonded abrasive products – Dimensions – - -
Part 16: Grinding wheels for cutting-off on hand
held power tools
ANSI B7.1 2000 Safety Requirements for the Use, Care and - -
Protection of Abrasive Wheels
– 15 – EN 60745-2-3:2007
Annex ZZ
(informative)
Coverage of Essential Requirements of EC Directives
This European Standard has been prepared under a mandate given to CENELEC by the
European Commission and the European Free Trade Association and within its scope the
standard covers all relevant essential requirements as given in Annex I of EC Directive 98/37/EC
(Machinery Directive), amended by Directive 98/79/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling
within the scope of this standard.

NORME CEI
INTERNATIONALE
IEC
60745-2-3
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2006-02
Outils électroportatifs à moteur –
Sécurité –
Partie 2-3:
Règles particulières pour les meuleuses,
lustreuses et ponceuses du type à disque

Hand-held motor-operated electric tools –
Safety –
Part 2-3:
Particular requirements for grinders,
polishers and disk-type sanders

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60745-2-3  IEC:2006 – 3 –
CONTENTS
FOREWORD.7

1 Scope.13
2 Normative references .13
3 Definitions .13
4 General requirements .17
5 General conditions for the tests .19
6 Void.19
7 Classification.19
8 Marking and instructions.19
9 Protection against access to live parts.29
10 Starting .29
11 Input and current .29
12 Heating .29
13 Leakage current .29
14 Moisture resistance .29
15 Electric strength .29
16 Overload protection of transformers and associated circuits .31
17 Endurance.31
18 Abnormal operation .31
19 Mechanical hazards.31
20 Mechanical strength .39
21 Construction .43
22 Internal wiring.45
23 Components .45
24 Supply connection and external flexible cords .45
25 Terminals for external conductors.45
26 Provision for earthing .45
27 Screws and connections .45
28 Creepage distances, clearances and distances through insulation.45
29 Resistance to heat, fire and tracking.45
30 Resistance to rusting.47
31 Radiation, toxicity and similar hazards.47

Annexes .69
Annex K (normative) Battery tools and battery packs .69
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources.69
Annex AA (informative) Material and thickness of guards.69

Bibliography.71

60745-2-3  IEC:2006 – 5 –
Figure 101 – Typical guard designs a) and b) for wheel Types 1, 41 and 42 .49
Figure 102 – Typical guard design with front lip for wheel Types 27, 28 and 29 .51
Figure 103 – Adjustable guard for cup wheel Types 6 and 11 .53
Figure 104 – Principal dimensions of flanges .55
Figure 105 – Dimensions of an adaptor backing flange .55
Figure 106 – Guard strength test: explanation of guard positions.59
Figure 107 – Guard strength test: preparation of the grinder .61
Figure 108 – Guard strength test: preparation of cup wheel Types 6 and 11 .61
Figure 109 – Guard strength test: straight grinder with additional masses.63
Figure 110 – Guard strength test box.67

Table 101 – Torques for testing flanges .37
Table 102 – Typical pre-cut length ranges for standard wheel dimensions .41

60745-2-3  IEC:2006 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-3: Particular requirements for grinders,
polishers and disk-type sanders

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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equipment declared to be in conformity with an IEC Publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60745-2-3 has been prepared by subcommittee 61F: Safety of
hand-held motor-operated electric tools, of IEC technical committee 61: Safety of household
and similar electrical appliances.
This second edition cancels and replaces the first edition published in 1984 and its
amendment 1 (1995). It constitutes a technical revision. Main changes include Clause 8:
Markings and instructions, introducing detailed safety warnings, Clause 19: Mechanical
hazards, with requirements for flanges, spindles and guards and Clause 20: Mechanical
strength, with requirements and test for guards.

60745-2-3  IEC:2006 – 9 –
The text of this standard is based on the following documents:
FDIS Report on voting
61F/624/FDIS 61F/634/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60745-1, Hand-held
motor-operated electric tools – Safety – Part 1: General requirements, and its amendments. It
was established on the basis of the third edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60745-1.
This part 2 supplements or modifies the corresponding clauses of IEC 60745-1, so as to
convert that publication into the IEC standard: Safety for grinders, polishers and disk-type
sanders.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– additional annexes are lettered AA, BB, etc.
NOTE 3 In this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
IEC 60745 consists of the following parts, under the general title Hand-held motor-operated
electric tools – Safety:
Part 1: General requirements
Part 2-1: Particular requirements for drills and impact drills
Part 2-2: Particular requirements for screwdrivers and impact wrenches
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders
Part 2-4: Particular requirements for sanders and polishers other than disk type
Part 2-5: Particular requirements for circular saws and circular knives
Part 2-6: Particular requirements for hammers
Part 2-7: Particular requirements for spray guns for non-flammable liquids
Part 2-8: Particular requirements for shears and nibblers
Part 2-9: Particular requirements for tappers
Part 2-11: Particular requirements for reciprocating saws (jig and sabre saws)
Part 2-12: Particular requirements for concrete vibrators

60745-2-3  IEC:2006 – 11 –
Part 2-13: Particular requirements for chain saws
Part 2-14: Particular requirements for planers
Part 2-15: Particular requirements for hedge trimmers and grass shears
Part 2-16: Particular requirements for tackers
Part 2-17: Particular requirements for routers and trimmers
Part 2-18: Particular requirements for strapping tools
Part 2-19: Particular requirements for jointers
Part 2-20: Particular requirements for band saws
Part 2-21: Particular requirements for drain cleaners
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60745-2-3  IEC:2006 – 13 –
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-3: Particular requirements for grinders,
polishers and disk-type sanders

1 Scope
This clause of Part 1 is applicable, except as follows:
1.1 Addition:
This standard applies to grinders, with a rated speed not exceeding a peripheral speed of the
accessory of 80 m/s at rated capacity, polishers and disk-type sanders, including angle,
straight and vertical. This standard applies to tools with a rated capacity not exceeding
230 mm.
This standard does not apply to random-orbit polishers and random-orbit sanders. These are
covered by IEC 60745-2-4.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 603-12:1999, Bonded abrasive products – Dimensions – Part 12: Grinding wheels for
deburring and fettling on a straight grinder
ISO 603-14:1999, Bonded abrasive products – Dimensions – Part 14: Grinding wheels for
deburring and fettling/snagging on an angle grinder
ISO 603-16:1999, Bonded abrasive products – Dimensions – Part 16: Grinding wheels for
cutting-off on hand held power tools
ANSI B7.1:2000, Safety Requirements for the Use, Care and Protection of Abrasive Wheels
3 Definitions
This clause of Part 1 is applicable, except as follows:
3.101
blotter
thin piece of an easily compressible material, between the abrasive product and flange
3.102
disk-type sander
tool, constructed like a grinder, intended for sanding

60745-2-3  IEC:2006 – 15 –
3.102.1
angle disk-type sander
tool with the rotating spindle at a right angle to the motor shaft, intended for lateral sanding
3.102.2
straight disk-type sander
tool with the rotating spindle in-line with the motor shaft, intended for peripheral or lateral
sanding
3.102.3
vertical disk-type sander
tool with the rotating spindle in-line with the motor shaft, intended for lateral sanding
3.103
flange
collar, disc or plate between or against which wheels are mounted
3.103.1
unrecessed flange
flange fixed to the machine spindle having an unrecessed flat surface against which a
threaded hole abrasive product is screwed, e.g. a cup wheel, a cone or a plug
3.103.2
recessed flange
flange fixed to the machine spindle having a recessed flat surface
3.103.3
flange outside diameter
outside diameter of the contact surface of a flange
3.103.4
backing flange
contacts and provides support to the back side of the wheel and is located on the spindle
between wheel and tool
3.103.5
locking flange
supports the front side of the wheel and secures and clamps the wheel to the spindle and the
backing flange
3.104
grinder
tool driving a rotating spindle on which a bonded abrasive product is mounted
3.104.1
angle grinder
tool with the rotating spindle at a right angle to the motor shaft, intended for peripheral and
lateral grinding
3.104.2
straight grinder
tool with the rotating spindle in-line with the motor shaft, either equipped with an abrasive
wheel intended for peripheral grinding or equipped with a collet or chuck intended for use with
mounted wheels, points or burrs

60745-2-3  IEC:2006 – 17 –
3.104.3
vertical grinder
tool with the rotating spindle in-line with the motor shaft, intended for lateral grinding
3.105
mounted wheels
various shapes and sizes that may be either organic or inorganic bonded abrasives and are
mounted on a mandrel or threaded onto a mandrel
3.106
polisher
tool equipped with a rotating disk or pad intended for polishing
3.106.1
angle polisher
tool with the rotating spindle at a right angle to the motor shaft, intended for peripheral and
lateral polishing
3.106.2
straight polisher
tool with the rotating spindle in-line with the motor shaft, intended for peripheral polishing
3.106.3
vertical polisher
tool with the rotating spindle in-line with the motor shaft, intended for lateral polishing
3.107
rated capacity
maximum diameter of the rotating accessory to be fitted on the tool as recommended by the
manufacturer’s instruction
3.108
rated speed
maximum attainable speed, with any recommended accessory installed, at rated voltage or at
the upper limit of the rated voltage range designated by the manufacturer
3.109
wheel guard
device which partly encloses the abrasive wheel and gives protection to the operator
3.110
wheel types
wheels for different applications in accordance with ISO 603-12, ISO 603-14, ISO 603-16 or
ANSI B 7.1
3.111
minor fragment
particles less than 1/16 of the mass of the abrasive wheel
4 General requirements
This clause of Part 1 is applicable.

60745-2-3  IEC:2006 – 19 –
5 General conditions for the tests
This clause of Part 1 is applicable.
6 Void
7 Classification
This clause of Part 1 is applicable.
8 Marking and instructions
This clause of Part 1 is applicable, except as follows:
8.1 Addition:
Tools shall also be marked with:
– rated speed in revolutions per minute. Tools designed for operation at more than one
rated speed shall be marked with the rated speed for each of the speed settings in such a
way that it is clear which speed corresponds with each of the settings;
– rated capacity in mm;
– indication of direction of rotation of the spindle. This shall be indicated by an arrow, raised
or sunk, or by any other means no less visible and indelible;
– tools provided with a threaded spindle shall be marked with spindle thread size;
– “ WARNING Always wear eye protection” or the sign M004 of ISO 7010 .
8.6 Addition:
n……………………….rated speed
8.12.1 Addition:
For the following safety instructions specified in 8.12.1.101 to 8.12.1.107, the terms like
grinding/grinder, sanding/sander, wire brushing/wire brush, polishing/polisher or cutting-
off/cut-off tool, are selected as recommended by the manufacturer. These terms in the
warnings and headings must be consistently used or deleted based on the selected
operations. The “and”/“or” conjunctions may be used as appropriate.
If the power tool is recommended only for one of the listed operations, the heading of that
section is to be used for all warnings.
8.12.1.101 Safety instructions for all operations
Safety Warnings Common for Grinding, Sanding, Wire Brushing, Polishing or Abrasive
Cutting-Off Operations:
___________
The future safety sign M004 is currently in DIS stage as ISO 7010:2003/DAmd6.

60745-2-3  IEC:2006 – 21 –
a) This power tool is intended to function as a grinder, sander, wire brush, polisher or
cut-off tool. Read all safety warnings, instructions, illustrations and specifications
provided with this power tool. Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
b) Operations such as grinding, sanding, wire brushing, polishing or cutting-off are
not recommended to be performed with this power tool. Operations for which the
power tool was not designed may create a hazard and cause personal injury.
NOTE List only those operations that were not included in the first warning. If all listed operations are
recommended, then this warning may be omitted but all subsequent warnings must be given without an
exclusion.
c) Do not use accessories which are not specifically designed and recommended by
the tool manufacturer. Just because the accessory can be attached to your power tool, it
does not assure safe operation.
d) The rated speed of the accessory must be at least equal to the maximum speed
marked on the power tool. Accessories running faster than their rated speed can break
and fly apart.
e) The outside diameter and the thickness of your accessory must be within the
capacity rating of your power tool. Incorrectly sized accessories cannot be adequately
guarded or controlled.
f) The arbour size of wheels, flanges, backing pads or any other accessory must
properly fit the spindle of the power tool. Accessories with arbour holes that do not
match the mounting hardware of the power tool will run out of balance, vibrate excessively
and may cause loss of control.
g) Do not use a damaged accessory. Before each use inspect the accessory such as
abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear,
wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect
for damage or install an undamaged accessory. After inspecting and installing an
accessory, position yourself and bystanders away from the plane of the rotating
accessory and run the power tool at maximum no-load speed for one minute.
Damaged accessories will normally break apart during this test time.
h) Wear personal protective equipment. Depending on application, use face shield,
safety goggles or safety glasses. As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron capable of stopping small abrasive or
workpiece fragments. The eye protection must be capable of stopping flying debris
generated by various operations . The dust mask or respirator must be capable of filtrating
particles gen
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