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1、INTERNATIONAL STANDARD INTERNATIONAL ORGANlZATlON FOR STANDARDlZATlON .MEXC,HAPOUHAR OPTAHM3A”MI “0 CTAH;IAPTM3AUMM.ORGAN,SAT,ON ,NTERNAT,ONALE DE NORMAL,SAT,ON Parallel shank countersinks for angles 60, 90” and 120” inclusive Outils ii chanfreiner ii queue cylindrique, B angle au sommet de 60, 90”
2、et 720 First edition - 1975-07-15 UDC 621.914.22 Descriptors : tools, countersinks, parallel shanks, dimensions. Ref. No. IS0 3294-1975 (E) Price based on 1 page Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/997254
3、5001 Not for Resale, 04/25/2007 09:44:09 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 St
4、andards 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
5、 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 3294 was drawn up by Technical Committee ISO/TC 29, Small too/s, and circula
6、ted to the Member Bodies in December 1973. It has been approved by the Member Bodies of the following countries : Australia Austria Belgium Canada Chile Czechoslovakia Egypt, Arab Rep. of France Germany Hungary India Ireland Israel Italy Japan Netherlands New Zealand Poland Romania South Africa, Rep
7、. of No Member Body expressed disapproval of the document. Sweden Switzerland Thailand Turkey United Kingdom U.S.A. U.S.S.R. Yugoslavia 0 International Organization for Standardization, 1975 0 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under licen
8、se with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 09:44:09 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 3294-1975 (E) Parallel shank countersinks for angles 60”, 90” and 120” inclusive 1 SCOPE AND FIELD OF AP
9、PLICATION This International Standard specifies the dimensions of parallel shank countersinks for angles 60”, 90” and 120” inclusive. It specifies dimensions in metric units only, these being regarded as the only recommended dimensions in the future, for countersinks with cutting diameters in the ra
10、nge 8 to 25 mm. The dimensions apply only to tools made from high speed steel. However, if the method of production allows, the shanks may be manufactured from a suitable alternative material, such as a carbon steel. Unless otherwise indicated, the countersinks will be right-hand cutting. Morse tape
11、r shank countersinks are the subject of IS0 3293. 2 REFERENCE IS0 3293, Morse taper shank countersinks for angles 60”, 90” and 720” inclusive. (Y = 60”, 90” or 120” inclusive (tolerance : -$I Overall length I, Nominal size Small diameter . dl dz* a - 60 u - 90 & 120, 8 1.6 48 44 10 2 I 50 46 12.5 2.
12、5 i 52 48 16 3.2 60 56 20 4 64 60 25 7 69 65 * Front end design optional. Dimenstons in millimetres Body length 12 Shank diameter a z 60” a=90”&120 d3 h9 16 12 8 18 14 8 20 16 8 24 20 10 28 24 10 33 29 10 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 09:44:09 MDTNo reproduction or networking permitted without license from IHS -,-,-