NTERNATIONAL STANDARD TSO 3940 INTERNATIONAL ORGANIZATION FOR StANDARDIZATION MEKIyHAPOIHAN OPrAHW3AiS IIO CtAHIAPTW3ALIVH.ORGANISATION INTERNATIONALE DE NORMALISATION Tapered die-sinking cutters with parallel shanks Fraises a matrices, coniques, a queue cylindrique First edition - 1977-06-15 ISO 3940-1977 (E) UDC 621.914.2 Ref. No. IS0 3940-1977 (E) Descriptors : tools, die-sinking cutters, single angle cutters, parallel shanks, dimensions. Price based on 3 pages Copyright International Organization for Standardization ted without license from IHS Not for Resale 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 the member bodies for approval before their acceptance as International to Standards by the IsO Council. Standard ISO 3940 was developed by International Technical Committee ISO/TC 29, Small toois, and was circulated to the member bodies in November 1975. It has been approved by the member bodies of the following countries : Hungary South Africa, Rep. of Australia India Sweden Austria Belgium Israel Turkey Bulgaria Italy United Kingdom Egypt, Arab Rep. of Korea, Rep. of U.S.S.R. France Mexico Germany Romania The member bodies of the following countries expressed disapproval of the document on technical grounds : Czechoslovakia Japan Poland International Organization for Standardization, 1977 Printed in Switzerland CopyrighnteationarganizaioorStandardization tted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 3940-1977 (E) Tapered die-sinking cutters with parallel shanks 1 SCOPE AND FIELD OF APPLICATION Three types of cutters are standardized : short type, medium type, and long type in conjunction with the useful This International Standard specifies the dimensions of length 1. tapered die-sinking cutters with plain parallel or parallel flatted shanks. Parallel shanks are in accordance with ISO 3338/1 and lt. These cutters are in particular intended for directly REFERENCES 2 obtaining clearances of moulds, patterns and dies, when these exceed 2° 52'. IsO 3338/l, Parallel shanks for milling cutters -- Part / : Dimensional characteristics of plain parallel shanks. This International Standard applies to flat-end cutters and ISO 3338/ll, Parallel shanks for milling cutters - Part Il : ball-nosed cutters. Dimensional characteristics of parallel flatted shanks. Copyright International Organization for Standardization tted without license from IHS Not for Resale