3314 D(ISO NTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKIYHAPOHAH OPIAHW3ALIM HIO CTAHIAPTH3ALIMH.ORGANISATION INTERNATIONALE DE NORMALISATION Shell drills with taper bore (taper bore 1 : 30 (included)) with slot drive Forets creux a alesage conique (conicite 1 : 30) a entrainement par tenons First edition - 1975-05-15 ISO 3314-1975 (E) UDC 621.951.47 Ref. No. 1SO 3314-1975 (E) Descriptors : tools, drill bits, taper bore, specifications, dimensions. Price based on 4 pages Copyright International Organization for Standardization ted without license from IHS Not for Resale No FOREWORD ISO (the International Organization for Standardization) is a worlidwide 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. International Standard ISO 3314 was drawn up by Technical Committee ISO/TC 29, Small too/s, and circulated to the Member Bodies in February 1974. It has been approved by the Member Bodies of the following countries : Australia Switzerland India Austria Israel Turkey Belgium Japan United Kingdom Bulgaria Netherlands U.S.A. Egypt, Arab Rep. of Poland U.S.S.R. Romania Yugoslavia France Germany South Africa, Rep. of Hungary Spain The Member Bodies of the following countries expressed disapproval of the document on technical grounds : Czechoslovakia Italy Sweden International Organization for Standardization, 1975 Printed in Switzerland Copyright International Organization for Standardization ed without license from IHS Not for Resale ISO 3314-1975 (E) INTERNATIONAL STANDARD Shell drills with taper bore (taper bore 1 : 30 (included)) with slot drive 1 SCOPE AND FIELD OF APPLICATION 2 REFERENCES This International Standard specifies the dimensions of IsO 235/l, Parallel shank twist drills, jobber and stub series, shell drills with taper bore, taper 1 : 30 (inciuded), with Morse taper shank twist drills and core drills. slot drive, for use on the corresponding arbors for shel! reamers in accordance with IS0 2402. (The dimensions of ISO 2402, Shell reamers with taper bore (taper bore 1 : 30 these arbors are repeated for information in the annex.) (inciuded)) with slot drive and arbors for shell reamers. It supplements ISO 235/t. It covers only metric dimensions, regarded as the only recommended dimensions in the future, for this type of : II!up AND FITTING 3 GENERAL DIMENSIONS for shell drills with outside diameters above 23,6 mm DIMENSIONS up to and including 101,6 mm having taper bores with targe end diameters d from 13 to 40 mm; The range of outside diameters does not correspond exacty to the ranges aiready established in 1SO 2402 for shell forshelldrillslots, inorder toensure reamers, and it has also been found necessary to depart interchangeability of shell drills and the corresponding from the outside diameter/bore diameter relationship arbors shown in IS0 2402, and also details of a method established for shell reamers, in order to maintain a wall of checking the taper bore. thickness which will give sufficient strength to the drills A list of recommended stocked sizes of shell drilis is given since the depth of the flutes of shell drills is very much in the annex. greater than those of shell reamers. Unless otherwise stated, these drills will be right-hand The numbers of flutes are not specified, being left to the cutting. discretion of the manufacturer. Copyright International Organization for Standardization cing permitted without license from IHS Not for