SIST EN ISO 7787-2:2020

Dentistry - Laboratory cutters - Part 2: Carbide laboratory cutters (ISO 7787-2:2020)

This document specifies dimensional and other requirements for the 11 most commonly used carbide cutters which are predominantly used in the dental laboratory.
NOTE    These cutters are also used in podiatry.

Zahnheilkunde - Laborfräser - Teil 2: Laborfräser aus Hartmetall (ISO 7787-2:2020)

Dieses Dokument legt Anforderungen an Maße und andere Anforderungen für die 11 am häufigsten verwendeten Fräser aus Hartmetall fest, die überwiegend im Zahntechnikerlabor verwendet werden.
ANMERKUNG   Diese Fräser werden auch für die Fußpflege verwendet.

Médecine bucco-dentaire - Fraises techniques - Partie 2: Fraises en carbure (ISO 7787-2:2020)

Le présent document spécifie les caractéristiques dimensionnelles et d'autres exigences pour les onze fraises en carbure les plus communément utilisées au laboratoire dentaire.
NOTE       Ces fraises sont également utilisées en podologie.

Zobozdravstvo - Laboratorijska rezila - 2. del: Kovinska laboratorijska rezila (ISO 7787-2:2020)

General Information

• Status: Published
• Public Enquiry End Date: 04-Sep-2019
• Publication Date: 06-Apr-2020
• ICS: 11.060.25 - Dental instruments
• Technical Committee: VAZ - Healthcare
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 31-Mar-2020
• Due Date: 05-Jun-2020
• Completion Date: 07-Apr-2020
• Ref Project: EN ISO 7787-2:2020 - Dentistry - Laboratory cutters - Part 2: Carbide laboratory cutters (ISO 7787-2:2020)

Relations

• Replaces: SIST EN ISO 7787-2:2001 - Dental rotary instruments - Cutters - Part 2: Carbide laboratory cutters (ISO 7787-2:2000)
• Effective Date: 01-May-2020

Overview

EN ISO 7787-2:2020 - Dentistry: Laboratory cutters - Part 2: Carbide laboratory cutters (ISO 7787-2:2020) specifies dimensional and other requirements for the 11 most commonly used carbide laboratory cutters used in dental laboratories (and noted as also used in podiatry). Endorsed by CEN, this part of the ISO 7787 series ensures interchangeability and consistent performance of tungsten‑carbide cutting heads for rotary laboratory instruments.

Key topics and technical requirements

• Materials
  • Working part: tungsten carbide (type and treatment left to manufacturer).
  • Shank: stainless steel or other suitable materials (per ISO 1797 guidance).
• Classification
  • Laboratory cutters are classified by working‑part material: steel, carbide, or other (this document covers carbide cutters).
• Shapes, dimensions and blades
  • Shapes for the working part are defined (Figures 1–11) with dimensional tables for nominal head diameters and lengths (examples include nominal sizes ~4.0–7.0 mm).
  • Requirements for number of blades, blade geometry and acceptable variations are specified to ensure interchangeability.
• Performance and inspection
  • Run‑out (rotational concentricity), sampling, measurement and pass/fail evaluation procedures are referenced; testing is aligned with ISO test methods (see ISO 8325).
• Designation, marking and packaging
  • Rules for designation code numbers, labelling on instruments and packages, and packaging requirements are included to assist traceability and regulatory compliance.
• Normative references
  • Key referenced standards: ISO 1797, ISO 1942, ISO 2157, ISO 8325 and ISO 15223‑1.

Practical applications and benefits

• Ensures interchangeability of carbide laboratory cutters across manufacturers and laboratories.
• Provides manufacturers with clear dimensional and labelling requirements for product design and quality control.
• Helps dental technicians select compatible rotary cutters for trimming, shaping and finishing dental materials (wax, acrylics, metals, ceramics).
• Supports procurement, regulatory compliance and CE marking processes by standardizing designation and packaging information.
• Applicable also to podiatry instrument suppliers and technicians who use similar carbide rotary cutters.

Who should use this standard

• Dental instrument manufacturers and product designers
• Quality managers and test laboratories in dental manufacturing
• Dental laboratory technicians and procurement specialists
• Regulatory and conformity assessment bodies
• Podiatry equipment producers using carbide cutters

Related standards

• EN ISO 7787‑1 (steel laboratory cutters)
• ISO 7787‑3 / ISO 7787‑4 (other carbide cutter parts)
• ISO 1797, ISO 2157, ISO 8325, ISO 1942 (vocabulary, shanks, test methods)

Keywords: EN ISO 7787-2:2020, carbide laboratory cutters, dentistry standard, tungsten carbide, dental laboratory, rotary instruments, ISO 7787-2.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN ISO 7787-2:2001
Zobozdravstvo - Laboratorijska rezila - 2. del: Kovinska laboratorijska rezila (ISO
7787-2:2020)
Dentistry - Laboratory cutters - Part 2: Carbide laboratory cutters (ISO 7787-2:2020)
Zahnheilkunde - Laborfräser - Teil 2: Laborfräser aus Hartmetall (ISO 7787-2:2020)
Médecine bucco-dentaire - Fraises techniques - Partie 2: Fraises en carbure (ISO 7787-
2:2020)
Ta slovenski standard je istoveten z: EN ISO 7787-2:2020
ICS:
11.060.25 Zobotehnični instrumenti Dental instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 7787-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 11.060.20 Supersedes EN ISO 7787-2:2000
English Version
Dentistry - Laboratory cutters - Part 2: Carbide laboratory
cutters (ISO 7787-2:2020)
Médecine bucco-dentaire - Fraises de laboratoire - Zahnheilkunde - Laborfräser - Teil 2: Laborfräser aus
Partie 2: Fraises de laboratoire en carbure (ISO 7787- Hartmetall (ISO 7787-2:2020)
2:2020)
This European Standard was approved by CEN on 16 February 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7787-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 7787-2:2020) has been prepared by Technical Committee ISO/TC 106
"Dentistry" in collaboration with Technical Committee CEN/TC 55 “Dentistry” the secretariat of which
is held by DIN.
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 September 2020, and conflicting national standards
shall be withdrawn at the latest by September 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 7787-2:2000.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 7787-2:2020 has been approved by CEN as EN ISO 7787-2:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 7787-2
Fifth edition
2020-02
Dentistry — Laboratory cutters —
Part 2:
Carbide laboratory cutters
Médecine bucco-dentaire — Fraises de laboratoire —
Partie 2: Fraises de laboratoire en carbure
Reference number
ISO 7787-2:2020(E)
©
ISO 2020
ISO 7787-2:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 7787-2:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Classification . 2
6 Requirements . 2
6.1 Materials . 2
6.1.1 Working part . 2
6.1.2 Shank . . 2
6.2 Shapes . 2
6.3 Dimensions and number of blades . 6
6.3.1 Working part . 6
6.3.2 Shank . . 7
6.4 Cutter blades . 7
6.5 Run-out . 7
7 Sampling . 7
8 Measurement and test methods . 7
8.1 Shapes . 7
8.2 Dimensions and number of blades . 7
8.3 Cutter blades . 7
8.4 Run-out . 7
8.5 Pass/fail evaluation . 7
9 Designation . 8
9.1 Designation code numbers . 8
9.2 Designation of cutter blades. 8
10 Marking on the instrument . 8
11 Labelling on the package . 8
12 Packaging . 8
Annex A (informative) Designation of cutter blades and number of blades .9
ISO 7787-2:2020(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.
The procedures used to develop this document and those intended for its further maint
...