ISO-5421-1977.pdf

INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDlZATlON .MEXi,YHAPOL,HAR OPTAHM3A”MR n0 CTAHLlAPTM3AUIIH .ORGAN,SAT,ON ,NTERNAT,ONALE DE NORMALlSATlON Ground high speed steel tool bits Barreaux ractifi& en acier rapide First edition - 1977-08-01 UDC 621.9.02 : 669.14.018.252.3 Ref. No. IS0 5421-1977 (E) Descriptors : tools, power-operated tools, tool bits, specifications, dimensions, dimensional tolerances. Price based on 2 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:45:58 MDTNo reproduction or networking permitted without license from IHS -,-,- FOREWORD IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 member bodies). The work of developing international Standards is carried out through IS0 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 IS0 Council. International Standard IS0 5421 was developed by Technical Committee lSO/TC 29, Small too/s, and was circulated to the member bodies in March 1976. It has been approved by the member bodies of the following countries : Australia Belgium Brazil Bulgaria Czechoslovakia France Germany Hungary India Israel Italy Korea, Rep. of Mexico Netherlands Philippines Poland Romania South Africa, Rep. of Spain Sweden Switzerland Turkey U.S.S.R. Yugoslavia The member bodies of the following countries expressed disapproval of the document on technical grounds : Austria Japan United Kingdom 0 International Organization for Standardization, 1977 0 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:45:58 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 5421-1977 (E) Ground high speed steel tool bits 1 SCOPE AND FIELD OF APPLICATION This International Standard lays down the dimensions of ground high speed steel tool bits of : - round section (clause 2) - square section (clause 3) - rectangular section (clause 4) - trapezoidal section (clause 5) 3 SQUARE SECTION TOOL BITS NOTE - By agreement between user and supplier, tool bits may have slanted ends, but in such cases the overall length L shall be equal to the length L specified in the table. 2 ROUND SECTION TOOL BITS Dimensions in millimetres hl 1 L Dimensions in millimetres 1 63 r 5 X X X 6 X X X X t 8 1 I 20 I X I I44xIx - I h I b I I I h13 I h13 1 63 1 80 1 100 1 160 1 200 1 16 16 x x x 20 20 x x I 25 25 I X 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:45:58 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 5421-1977 (E) 4 RECTANGULAR SECTION TOOL BITS Ratio hlb = I,6 2 Dimensions in millimetres h b LA2 h13 h13 100 160 200 6 4 X 8 5 X 10 6 X X 72 1 8 1 16 I I 10 20 114 I) 25 16 I X X X X X X 8 4 X 1 12 6 X X I( X ic X X 10 I44 16 1 8 1 2010 I: 25 1 12 1 Second choice dimensions : Dimensions in millimetres 5 TRAPEZOIDAL SECTION TOOL BITS (Parting-off blades with side clearance but without longitudinal clearance) NOTE - By agreement between user and supplier, this tool bit may be produced with one square end. -!=0,6+0.2 mm Dimensions in millimetres 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:45:58 MDTNo reproduction or networking permitted without license from IHS -,-,-