SIST EN ISO 11148-3:2013

Hand-held non-electric power tools - Safety requirements - Part 3: Drills and tappers (ISO 11148-3:2012)

This part of ISO 11148 applies to hand-held non-electric power tools (hereinafter "drills and tappers") intended for rotary drilling of holes in all kinds of material, e.g. wood, metal, concrete and plastics, or for tapping and cleaning threads in metal and plastics. The drills and tappers can be powered by compressed air, hydraulic fluid or internal combustion engines and are intended for use by one operator and supported by the operator's hand or hands, with or without a suspension, e.g. a balancer. This part of ISO 11148 is applicable to - drills; - heavy duty drills with two handles; - tappers. This part of ISO 11148 is not applicable to special requirements and modifications of drills and tappers for the purpose of mounting them in fixtures. This part of ISO 11148 deals with all significant hazards, hazardous situations or hazardous events when drills and tappers are used as intended and under conditions of misuse that are reasonably foreseeable by the manufacturer, with the exception of their use in potentially explosive atmospheres.

Handgehaltene nicht elektrisch betriebene Maschinen - Sicherheitsanforderungen - Teil 3: Bohrmaschinen und Gewindeschneider (ISO 11148-3:2012)

Der vorliegende Teil von ISO 11148 gilt für handgehaltene, nicht elektrisch betriebene Maschinen (im Folgenden als Bohrmaschinen und Gewindeschneider bezeichnet), die für Drehbohren von Löchern in allen Arten von Werkstoffen, z. B. Holz, Metall, Beton, Kunststoffe usw. oder für das Schneiden und Säubern von Gewinden aus Metall und Kunststoff gedacht sind. Die Bohrmaschinen und Gewindeschneider können von Druckluft, Hydraulikflüssigkeit oder einem Verbrennungsmotor angetrieben werden und sind zum Gebrauch durch einen einzelnen Bediener vorgesehen und werden vom Bediener in seiner Hand oder seinen Händen gehalten, mit oder ohne eine Aufhängung, z. B. eine Ausgleichseinrichtung.
Der vorliegende Teil von ISO 11148 ist anwendbar auf:
-   Bohrmaschinen;
-   Hochleistungsbohrmaschinen mit zwei Handgriffen;
-   Gewindeschneider.
ANMERKUNG 1   Anhang B enthält Beispiele für Bohrmaschinen und Gewindeschneider.
Der vorliegende Teil von ISO 11148 ist nicht zutreffend für besondere Anforderungen und Änderungen an Bohrmaschinen oder Gewindeschneidern zum Zwecke des Spannens in eine Halterung.
Der vorliegende Teil von ISO 11148 behandelt alle signifikanten Gefährdungen, gefährliche Situationen oder Ereignisse, die beim vorgesehenen Gebrauch von Bohrmaschinen und Gewindeschneidern sowie unter Bedingungen vom Hersteller vorhersehbaren Missbrauchs auftreten können; ausgenommen die Verwendung in explosionsfähigen Atmosphären.
ANMERKUNG 2   EN 13463 1 enthält Anforderungen an nicht elektrisch betriebene Geräte für den Einsatz in explosions¬fähigen Atmosphären.

Machines portatives à moteur non électrique - Exigences de sécurité - Partie 3: Perceuses et taraudeuses (ISO 11148-3:2012)

L'ISO 11148-3:2012 s'applique aux machines portatives à moteur non électrique (appelées ci-après dans le texte «perceuses et taraudeuses») destinées au perçage de trous dans tout type de matériau comme le bois, le métal, le béton, le plastique, etc. ou au taraudage et au nettoyage de filetages dans les métaux et les plastiques. Les perceuses et les taraudeuses peuvent être alimentées par air comprimé, fluide hydraulique ou moteurs à combustion interne et sont prévues pour être utilisées par un seul opérateur ou portées par la ou les mains de l'opérateur avec ou sans suspension, par exemple à l'aide d'un équilibreur.
L'ISO 11148-3:2012 couvre les perceuses, les perceuses pour travaux lourds à deux poignées, et les taraudeuses.
L'ISO 11148-3:2012 ne couvre pas les exigences spécifiques et les modifications des perceuses et taraudeuses destinées à être montées sur un châssis.
L'ISO 11148-3:2012 traite de tous les phénomènes dangereux, situations dangereuses ou événements dangereux significatifs, à l'exception des perceuses et taraudeuses destinées à être utilisées dans une atmosphère potentiellement explosible, lorsqu'elles sont utilisées normalement et lorsqu'elles font l'objet d'un mauvais usage raisonnablement prévisible par le fabricant.

Neelektrična ročna orodja - Varnostne zahteve - 3. del: Vrtalniki in stroji za vrezovanje navojev (ISO 11148-3:2012)

Ta del standarda ISO 11148 velja za ročna neelektrična orodja (v nadaljnjem besedilu: vrtalniki in stroji za vrezovanje navojev), namenjena rotacijskemu vrtanju lukenj v vse vrste materiala, npr. les, kovino, beton in plastiko, ali za vrezovanje in odstranjevanje navojev v kovini in plastiki. Vrtalnike in stroje za vrezovanje navojev lahko napaja stisnjen zrak, hidravlična tekočina ali motorji z notranjim zgorevanjem; uporabljal naj bi jih upravljavec in jih držal z eno ali obema rokama z ali brez vzmetenja, npr. z balanserjem. Ta del standarda ISO 11148 velja za – vrtalnike; – vrtalnike za velike obremenitve z dvema ročajema; – stroje za vrezovanje navojev. Ta del standarda ISO 11148 ne obravnava posebnih zahtev in prilagoditev vrtalnikov in strojev za vrezovanje navojev za namestitev na stojalo. Ta del standarda ISO 11148 opisuje vsa večja tveganja, nevarne situacije ali nevarne dogodke v zvezi z vrtalniki in stroji za vrezovanje navojev, kadar se uporabljajo v skladu z njihovim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec, razen njihove uporabe v potencialno eksplozivnih okoljih.

General Information

• Status: Published
• Publication Date: 15-Apr-2013
• ICS: 25.140.10 - Pneumatic tools
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Apr-2013
• Due Date: 14-Jun-2013
• Completion Date: 16-Apr-2013
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN ISO 11148-3:2012 - Hand-held non-electric power tools - Safety requirements - Part 3: Drills and tappers (ISO 11148-3:2012)

Relations

• Replaces: SIST EN ISO 11148-3:2011 - Hand-held non-electric power tools - Safety requirements - Part 3: Drills and tappers (ISO 11148-3:2010)
• Effective Date: 01-May-2013
• Replaces: SIST EN ISO 11148-3:2011 - Hand-held non-electric power tools - Safety requirements - Part 3: Drills and tappers (ISO 11148-3:2010)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11148-3:2013
01-maj-2013
1DGRPHãþD
SIST EN ISO 11148-3:2011
1HHOHNWULþQDURþQDRURGMD9DUQRVWQH]DKWHYHGHO9UWDOQLNLLQVWURML]D
YUH]RYDQMHQDYRMHY,62
Hand-held non-electric power tools - Safety requirements - Part 3: Drills and tappers
(ISO 11148-3:2012)
Handgehaltene nicht elektrisch betriebene Maschinen - Sicherheitsanforderungen - Teil
3: Bohrmaschinen und Gewindeschneider (ISO 11148-3:2012)
Machines portatives à moteur non électrique - Exigences de sécurité - Partie 3:
Perceuses et taraudeuses (ISO 11148-3:2012)
Ta slovenski standard je istoveten z: EN ISO 11148-3:2012
ICS:
25.140.10 3QHYPDWLþQDRURGMD Pneumatic tools
SIST EN ISO 11148-3:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11148-3:2013

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SIST EN ISO 11148-3:2013


EUROPEAN STANDARD
EN ISO 11148-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2012
ICS 25.140.10 Supersedes EN ISO 11148-3:2010
English Version
Hand-held non-electric power tools - Safety requirements - Part
3: Drills and tappers (ISO 11148-3:2012)
Machines portatives à moteur non électrique - Exigences Handgehaltene nicht elektrisch betriebene Maschinen -
de sécurité - Partie 3: Perceuses et taraudeuses (ISO Sicherheitsanforderungen - Teil 3: Bohrmaschinen und
11148-3:2012) Gewindeschneider (ISO 11148-3:2012)
This European Standard was approved by CEN on 17 December 2012.

CEN 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 CEN-CENELEC Management Centre or to any CEN 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11148-3:2012: E
worldwide for CEN national Members.

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SIST EN ISO 11148-3:2013
EN ISO 11148-3:2012 (E)
Contents Page
Foreword . 3
Annex Z A (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC . 4

2

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SIST EN ISO 11148-3:2013
EN ISO 11148-3:2012 (E)
Foreword
This document (EN ISO 11148-3:2012) has been prepared by Technical Committee ISO/TC 118
"Compressors and pneumatic tools, machines and equipment" in collaboration with Technical Committee
CEN/TC 255 “Hand-held, non-electric power tools - Safety” the secretariat of which is held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11148-3:2010.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11148-3:2012 has been approved by CEN as a EN ISO 11148-3:2012 without any
modification.
3

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SIST EN ISO 11148-3:2013
EN ISO 11148-3:2012 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive 2006/42/EC on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the clauses of this
standard confers, within the limits of the scope of this standard, a presumption of conformity with the
corresponding Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.

4

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SIST EN ISO 11148-3:2013
INTERNATIONAL ISO
STANDARD 11148-3
Second edition
2012-12-15
Hand-held non-electric power tools —
Safety requirements —
Part 3:
Drills and tappers
Machines portatives à moteur non électrique — Exigences de sécurité —
Partie 3: Perceuses et taraudeuses
Reference number
ISO 11148-3:2012(E)
©
ISO 2012

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 General definitions . 2
3.2 Definitions related to drills and tappers . 4
4 Safety requirements and/or protective measures . 4
4.1 General . 4
4.2 Mechanical safety . 4
4.3 Thermal safety . 5
4.4 Noise reduction . 5
4.5 Vibration . 6
4.6 Materials and substances processed, used or exhausted . 6
4.7 Ergonomics . 7
4.8 Controls . 7
5 Verification . 8
5.1 General conditions for tests . 8
5.2 Noise . 8
5.3 Vibration . 8
5.4 Unintentional start . 8
5.5 Power tool construction . 8
5.6 Structure of verification of safety requirements . 9
6 Information for use . 9
6.1 Marking, signs and written warnings . 9
6.2 Instructions handbook .10
6.3 Operating instructions .15
6.4 Data .15
6.5 Maintenance instructions .16
Annex A (informative) List of significant hazards .17
Annex B (informative) Examples of drills and tappers covered by this part of ISO 11148 .19
Annex C (normative) Symbols for labels and signs.21
Annex D (normative) Additional safety requirements related to internal combustion engine
power tools .23
Bibliography .27
© ISO 2012 – All rights reserved iii

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11148-3 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines
and equipment, Subcommittee SC 3, Pneumatic tools and machines.
This second edition cancels and replaces the first edition (ISO 11148-3:2010), of which it constitutes a minor revision.
ISO 11148 consists of the following parts, under the general title Hand-held non-electric power tools — Safety
requirements:
— Part 1: Assembly power tools for non-threaded mechanical fasteners
— Part 2: Cutting-off and crimping power tools
— Part 3: Drills and tappers
— Part 4: Non-rotary percussive power tools
— Part 5: Rotary percussive drills
— Part 6: Assembly power tools for threaded fasteners
— Part 7: Grinders
— Part 8: Sanders and polishers
— Part 9: Die grinders
— Part 10: Compression power tools
— Part 11: Nibblers and shears
— Part 12: Circular, oscillating and reciprocating saws
A part 13, dealing with fastener driving tools, is under preparation.
iv © ISO 2012 – All rights reserved

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
Introduction
This document is a type C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
defined in the Scope of this part of ISO 11148.
When provisions of this type C standard are different from those that are stated in type A or B standards, the
requirements of this type C standard take precedence over the requirements of other standards for machines
that have been designed and built according to the requirements of this type C standard.
ISO 11148 consists of a number of independent parts for individual types of hand-held, non-electric power tools.
Certain elements of this part of ISO 11148 cover hand-held, non-electric power tools driven by internal
combustion engines powered by gaseous or liquid fuel. In these parts, the safety aspects relating to internal
combustion engines are found in a normative annex.
The parts are type C standards and refer to pertinent standards of types A and B where such standards are applicable.
© ISO 2012 – All rights reserved v

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SIST EN ISO 11148-3:2013

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SIST EN ISO 11148-3:2013
INTERNATIONAL STANDARD ISO 11148-3:2012(E)
Hand-held non-electric power tools — Safety requirements —
Part 3:
Drills and tappers
IMPORTANT — The electronic file of this document contains colours that are considered useful for the
correct understanding of the document. Users should consider printing this document using a colour
printer. ISO 3864-4 provides colorimetric and photometric properties together with, as a guideline,
references from colour order systems.
1 Scope
This part of ISO 11148 applies to hand-held non-electric power tools (hereinafter “drills and tappers”) intended
for rotary drilling of holes in all kinds of material, e.g. wood, metal, concrete and plastics, or for tapping and
cleaning threads in metal and plastics. The drills and tappers can be powered by compressed air, hydraulic
fluid or internal combustion engines and are intended for use by one operator and supported by the operator’s
hand or hands, with or without a suspension, e.g. a balancer.
This part of ISO 11148 is applicable to
— drills;
— heavy duty drills with two handles;
— tappers.
NOTE 1 For examples of drills and tappers, see Annex B.
This part of ISO 11148 is not applicable to special requirements and modifications of drills and tappers for the
purpose of mounting them in fixtures.
This part of ISO 11148 deals with all significant hazards, hazardous situations or hazardous events when drills
and tappers are used as intended and under conditions of misuse that are reasonably foreseeable by the
manufacturer, with the exception of their use in potentially explosive atmospheres.
NOTE 2 EN 13463-1 gives requirements for non-electrical equipment for potentially explosive atmospheres.
2 Normative references
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.
ISO 3857-3, Compressors, pneumatic tools and machines — Vocabulary — Part 3: Pneumatic tools and machines
ISO 3864-2, Graphical symbols — Safety colours and safety signs — Part 2: Design principles for product
safety labels
ISO 5391, Pneumatic tools and machines — Vocabulary
1)
ISO 7000, Graphical symbols for use on equipment — Registered symbols
ISO 9158, Road vehicles — Nozzle spouts for unleaded gasoline
1) The graphical symbol collections of ISO 7000, ISO 7001 and ISO 7010 are also available online in the ISO web store.
For more information, consult http://www.iso.org/iso/fr/publications_and_e-products/databases.htm.
© ISO 2012 – All rights reserved 1

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
ISO 9159, Road vehicles — Nozzle spouts for leaded gasoline and diesel fuel
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human responses to
contact with surfaces — Part 1: Hot surfaces
ISO 13732-3, Ergonomics of the thermal environment — Methods for the assessment of human responses to
contact with surfaces — Part 3: Cold surfaces
ISO 15744, Hand-held non-electric power tools — Noise measurement code — Engineering method (grade 2)
ISO 17066, Hydraulic tools — Vocabulary
ISO 20643, Mechanical vibration — Hand-held and hand-guided machinery — Principles for evaluation of
vibration emission
ISO 28927-5, Hand-held portable power tools — Test methods for evaluation of vibration emission — Part 5:
Drills and impact drills
NOTE ISO 28927-5 does not apply to tappers.
EN 12096, Mechanical vibration — Declaration and verification of vibration emission values
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3857-3, ISO 5391, ISO 12100 and ISO 17066
(for hydraulic tools), and the following apply.
3.1 General definitions
3.1.1
hand-held power tool
machine operated by one or two hands and driven by rotary or linear motors powered by compressed air,
hydraulic fluid, gaseous or liquid fuel, electricity or stored energy (e.g. by a spring) to do mechanical work and so
designed that the motor and the mechanism form an assembly that can easily be brought to its place of operation
NOTE Hand-held power tools driven by compressed air or gas are called pneumatic tools (or air tools). Hand-held
power tools driven by hydraulic liquid are called hydraulic tools.
3.1.2
inserted tool
tool inserted in the drill or tapper to perform the intended work
3.1.3
service tool
tool intended for performing maintenance or service on the drill or tapper
3.1.4
control device
device to start and stop the drill or tapper or to change the direction of the rotation or to control the functional
characteristics such as speed and power
3.1.5
start-and-stop device
throttle
manually operated control on the drill or tapper by which the energy supply to the motor can be turned on and off
2 © ISO 2012 – All rights reserved

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
3.1.6
hold-to-run start-and-stop device
constant-pressure throttle
start-and-stop device that automatically returns to the OFF position when the force on the start-and-stop
device actuator is released
3.1.7
lock-on start-and-stop device
constant-pressure throttle with instant release lock
hold-to-run start-and-stop device that can be locked in the ON position and designed so that it permits the drill
or tapper to be turned off by a single motion of the same finger or fingers used to turn it on
3.1.8
lock-off start-and-stop device
lock-off throttle
start-and-stop device that automatically latches in the OFF position when the actuator is released and where
two motions are required to energize the drill or tapper
3.1.9
positive on-off start-and-stop device
positive on-off throttle
start-and-stop device that remains in an ON position until it is manually changed
3.1.10
maximum operating pressure
maximum pressure at which a drill or tapper may be operated
3.1.11
whip hose
air hose connecting the main air hose with an air tool for the purpose of providing more flexibility
3.1.12
rated air pressure
air pressure, required at an air tool inlet port to ensure rated performance of the tool, also considered the
maximum pressure at which the tool may be operated
3.1.13 Rated speed
3.1.13.1
rated speed
〈pneumatic tool〉 speed of an air tool at no load and rated air pressure at the tool inlet port
NOTE The rated speed is expressed in revolutions per minute.
3.1.13.2
rated speed
〈hydraulic tool〉 nominal speed of a hydraulic tool at no load and rated flow at the tool inlet port
NOTE The rated speed is expressed in revolutions per minute.
3.1.14
maximum attainable speed
maximum speed which the tool can achieve under the most adverse condition of possible maladjustment or
malfunction of its speed control devices, when supplied with compressed air at the pressure marked on the
drill or tapper
3.1.15
suspension device
device, which is attached to the tool, whose primary purpose is to reduce the strain on the operator caused by
the weight of the tool
NOTE The device may also have a secondary purpose of transmitting a reaction torque.
© ISO 2012 – All rights reserved 3

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
3.2 Definitions related to drills and tappers
3.2.1
drill
rotary power tool driving an output spindle, typically through a gearbox
NOTE The output spindle is normally fitted with chuck or Morse taper, or another socket into which is fitted an
inserted tool, e.g. drill bit or reamer, making the drill or tapper suitable for drilling, reaming, tube expanding and for boring
in metal, wood and other materials.
3.2.2
drill bit
inserted tool for drilling operation
3.2.3
reamer
inserted tool for reaming operation
3.2.4
tap
inserted tool for tapping operation
3.2.5
tapper
power tool with a rotary spindle for the tapping of threaded holes; the rotation of the spindle is reversible
3.2.6
reaction bar
mechanical component attached to or forming part of the tool for the sole purpose of transmitting a reaction torque
4 Safety requirements and/or protective measures
4.1 General
The machine shall comply with the following safety requirements and/or protective measures and be verified
in accordance with Clause 5. In addition, the machine shall be designed in accordance with the principles of
ISO 12100 for relevant, but not necessarily significant, hazards, which are dealt with by this part of ISO 11148.
The measures adopted to comply with the requirements of Clause 4 shall take account of the state-of-the-art.
It is recognized that optimizing the design with respect to some safety measures can result in a degradation of
performance against other safety requirements. In such cases, it is required to strike a balance between the
various requirements in order to achieve a drill or tapper design that satisfies each requirement, so far as is
reasonably practicable, and remains fit for purpose.
4.2 Mechanical safety
4.2.1 Surfaces, edges and corners
Accessible parts of the drills and tappers shall not have sharp edges or angles or rough or abrasive surfaces;
see ISO 12100:2010, 6.2.2.1.
4.2.2 Supporting surface and stability
The drill or tapper shall be so designed that it can be laid aside and remain in a stable position on a plane surface.
4 © ISO 2012 – All rights reserved

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
4.2.3 Chuck keys and service tools
Chuck keys and service tools used with drilling and tapping chucks shall be so designed that they drop easily
out of position when released. They may be fixed to the drill or tapper by design, e.g. clip, but not by a chain or
string or other similar means. The avoidance of entanglement should be considered; see 6.2.2.5.
4.2.4 Hydraulic fluid ejection
Hydraulic systems of the drills and tappers shall be enclosed so as to give protection against high-pressure
fluid ejection.
4.2.5 Guards
Guards covering the chuck and the inserted tools are not required.
4.2.6 Spindles
4.2.6.1 Spindle threads
When threaded spindles are used, the thread direction shall be such that the chuck or attachment shall tend to
tighten during tool operation, or a means shall be provided to secure the chuck.
4.2.6.2 Reversible tools
Spindles for reversible tools shall be designed to drive the chuck in both directions without loosening the chuck
and mounting. If a threaded spindle is used, a means shall be provided to secure the chuck.
4.2.7 Power tool construction
The drill or tapper shall be so designed and constructed as to prevent the loosening or loss of components
during expected use, including rough handling and occasional dropping, which can compromise its safety
functions. Verification shall be made in accordance with 5.5.
4.3 Thermal safety
Surface temperatures of parts of the drills and tappers that are held during use or that can be inadvertently
touched shall follow the provisions of ISO 13732-1 and ISO 13732-3.
Pneumatic tools shall be designed to avoid the cooling effects of exhaust air on the handles and other gripping zones.
4.4 Noise reduction
The drill or tapper shall be designed and constructed so that the emission of noise is reduced to the lowest
level, taking account of technical progress and the availability of means of reducing noise, in particular at the
source. Principles for designing drills and tappers with reduced noise emission are contained in ISO/TR 11688-
1 and ISO/TR 11688-2.
The noise emission from using drills and tappers has three main sources:
— the drill or tapper itself;
— the inserted tool;
— the workpiece.
NOTE Generally, the noise emitted due to the characteristics of the workpiece cannot be controlled directly by the
manufacturer of the drill or tapper.
© ISO 2012 – All rights reserved 5

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SIST EN ISO 11148-3:2013
ISO 11148-3:2012(E)
Typical sources of noise emitted by the drill or tapper itself are
a) the motor and drive mechanism;
b) the exhaust air or gases;
c) the vibration- or impact-induced noise.
Where the exhaust air or gases are the major contributor to the noise, means to reduce the noise, for example
a silencer or equivalent means, shall be included in the design.
Alternatively, where practicable, the exhaust air or gases can be piped away from the operator in a hose.
Vibration-induced noise can often be reduced by vibration isolation and damping.
This list is not exhaustive; where alternative technical measures for noise reduction, with greater efficiency, are
available, they should be used by the manufacturer.
4.5 Vibration
The drill or tapper shall be designed and constructed so that the vibr
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