ISO 5421:1977
(Main)Ground high speed steel tool bits
Ground high speed steel tool bits
Barreaux rectifiés en acier rapide
General Information
Overview
ISO 5421:1977 specifies the dimensions and tolerances for ground high speed steel (HSS) tool bits used in metal cutting and machining operations. Developed by ISO Technical Committee ISO/TC 29 (Small Tools), this international standard provides uniform specifications for various shapes of HSS tool bits, including round, square, rectangular, and trapezoidal sections. The standard was first published in August 1977 and is intended to ensure consistency, interchangeability, and quality in the manufacture of high speed steel tool bits.
Key Topics
- Scope: Defines dimensions for ground high speed steel tool bits in multiple cross-section shapes.
- Tool Bit Types:
- Round section tool bits
- Square section tool bits - may include slanted ends by mutual agreement
- Rectangular and trapezoidal section tool bits
- Dimensions and Tolerances: Precise millimeter measurements for length, width, thickness, and related parameters are detailed.
- Interchangeability: Emphasizes that tool bits manufactured according to this standard will be compatible with power-operated and manual tools.
- User-Supplier Agreements: Allows for customization such as slanted ends or one square end on parting-off blades, provided overall dimensions comply with the specified requirements.
Applications
ISO 5421:1977 is critically useful for manufacturers, suppliers, and users of HSS tool bits, especially in industries where cutting tools must meet strict high-speed machining requirements.
- Metalworking Industry: Standardized tool bits enable reliable tool performance in shaping, turning, parting-off, and other cutting processes.
- Power-Operated Tools: Ensures compatibility of tool bits with machine tool holders and chucks.
- Tool Manufacturing: Helps manufacturers produce tools that meet internationally recognized dimensional standards, simplifying export and supplier evaluation.
- Quality Assurance: Facilitates inspection and quality control by providing clear size and tolerance benchmarks.
Related Standards
Users interested in high speed steel tools and cutting equipment may also consider:
- ISO 4957 - Tool steels including high speed steel grades and properties.
- ISO 513 - Cutting tool nomenclature and terminology.
- ISO 8688 - Test conditions for metal cutting tools.
- ISO/TC 29 - Ongoing technical committee publications related to small tools and cutting bits.
Keywords: ISO 5421, high speed steel tool bits, HSS tool bits standard, ground tool bits, cutting tool specifications, tool bit dimensions, metal cutting tools, power-operated tool bits, international standard for tool bits, machining tool bits.
Frequently Asked Questions
ISO 5421:1977 is a standard published by the International Organization for Standardization (ISO). Its full title is "Ground high speed steel tool bits". This standard covers: Ground high speed steel tool bits
Ground high speed steel tool bits
ISO 5421:1977 is classified under the following ICS (International Classification for Standards) categories: 25.100.10 - Turning tools. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEX~YHAPO~HA~ OPI-AHM3AWR l-IO CTAHAAPTM3ALIkWi -ORGANISATION INTERNATIONALE DE NORMALISATION
Ground high Speed steel tool bits
Barreaux rectiflels en acier rapide
First edition - 1977-08-01
A
UDC 621.9.02 : 669.14.018.252.3 Ref. No. ISO 5421-1977 (E)
Descriptors : tools, power-operated tools, tool bits, specifications, dimensions, dimensional tolerantes.
Price basedmon 2 pages
FOREWORD
ISO (the International Organization for Standardization) is a worldwide federation
of national Standards institutes (ISO member bodies). The work of developing
International Standards is carried out through ISO technical committees. Every
member body interested in a subject for which a technical committee has been set
up 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.
Draft International Standards adopted by the technical committees are circulated
to the member bodies for approval before their acceptance as International
Standards by the ISO Council.
International Standard ISO 5421 was developed by Technical Committee
ISO/TC 29, Small took, and was circulated to the member bodies in March 1976.
lt has been approved by the member bodies of the following countries :
Australia India Romania
Belgium Israel South Africa, Rep. of
Brazil Italy Spain
Sweden
Bu Igaria Korea, Rep. of
Czechoslovakia Mexico Switzerland
Netherlands Turkey
France
Philippines U.S.S.R.
Germany
Poland Yugoslavia
Hungary
bodies of the fo Ilowing countries expressed disapproval of the
The membe
...
NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MElKAYHAPOAHAR OPTAHHSAL&4II l-I0 ~AH~APTW3AI&ïW.ORGANISATION INTERNATIONALE DE NORMALISATION
Barreaux rectifiés en acier rapide
Ground high speed steel tool bits
Première édition - 1977-08-01
CDU 621.9.02 : 669.14.018.252.3
Réf. n* : ISO 5421-1977 (F)
Descripteurs : outil, outil mécanique, barreau pour outils, spécification, dimension, tolérance de dimension.
Prix basé sur 2 pages
AVANT-PROPOS
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont
soumis aux comités membres pour approbation, avant leur acceptation comme
Normes internationales par le Conseil de I’ISO.
La Norme internationale ISO 5421 a été élaborée par le comité technique
lSO/TC 29, Petit outillage, et a été soumise aux comités membres en mars 1976.
Les comités membres des pays suivants l’ont approuvée :
Afrique du Sud, Rép. d’ France
Pologne
Allemagne Hongrie Roumanie
Australie Inde . Suède
Israël
Belgique Suisse
Italie
Brésil Tchécoslovaquie
Bulgarie Mexique
Turquie
Corée, Rép. de
Pays-Bas U.R.S.S.
Espagne Philippines Yougoslavie
Les comités membres des pays suivants l’ont désapprouvée pour dès raisons
techniques :
Au triche
Japon
Royaume-Uni
0 Organisation internationale de normalisation, 1977 l
Imprimé en Su
...
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