© ISO 2016 Core drills with parallel shanks and with Morse taper shanks Forets aléseurs à queue cylindrique et à queue cône Morse INTERNATIONAL STANDARD ISO 7079 Second edition 2016 10 15 Reference nu[.]
INTERNATIONAL STANDARD ISO 7079 Second edition 2016-10-15 Core drills with parallel shanks and with Morse taper shanks Forets-aléseurs queue cylindrique et queue cône Morse Reference number ISO 7079:2016(E) © ISO 2016 ISO 7079:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved Unless otherwise specified, no part o f this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission Permission can be requested from either ISO at the address below or ISO’s member body in the country o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii © ISO 2016 – All rights reserved ISO 7079:2016(E) Contents Page Foreword iv Scope Normative references Core drills with parallel shanks Core drills with Morse taper shanks Core drills for pre- finishing operations Annex A (informative) Relationship between designations in this International Standard and ISO 13399 (all parts) Bibliography © ISO 2016 – All rights reserved iii ISO 7079:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work o f preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has been established 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 ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters o f electrotechnical standardization The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part In particular the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial rules of the ISO/IEC Directives, Part (see www.iso.org/directives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) Any trade name used in this document is in formation given for the convenience o f users and does not constitute an endorsement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 2, Holding tools, adaptive items and interfaces This second edition cancels and replaces the first edition (ISO 7079:1981), o f which it constitutes a minor revision, notably with the addition o f Annex A, which gives the relationship between the designations of this International Standard and the ISO 13399 series iv © ISO 2016 – All rights reserved INTERNATIONAL STANDARD ISO 7079:2016(E) Core drills with parallel shanks and with Morse taper shanks Scope T h i s I nternationa l Standard s p e ci fie s the d i men s ion s o f core d ri l l s with p ara l lel sh an ks a nd with M ors e taper shanks I t i nclude s two tab le s for e ach o f the ab ove s p e c i fie d typ e s , givi ng re s p e c tively — the dimensions for the preferred diameter (see Tables and 2), and the corre s p ond i ng leng th s defi ne d i n term s o f d i ame ter range s (s e e — Tables and 4) T he tables show on ly metric di mens ions wh ich are alone recommended i n the future for thi s typ e o f dri l l Unless otherwise stated, these drills will be right-hand cutting drills Normative references T he fol lowi ng i nd i s p en s able c u ments , i n whole or i n p ar t, are normatively re ference d i n th i s c u ment a nd are for its appl ic ation For date d re ference s , on ly the e d ition cite d appl ie s For u ndate d re ference s , the late s t e d ition o f the re ference d c u ment (i nclud i ng any amend ments) appl ie s ISO 296, Machine tools — Self-holding tapers for tool shanks Core drills with parallel shanks See Figure and Tables and optional recess K e y F © ISO 2016 – All rights reserved i g u r e 1 ISO 7079:2016(E) Table — Dimensions for the preferred diameters Dimensions in millimetres d l 33 36 39 43 61 65 70 75 47 80 52 86 57 93 69 109 75 117 81 125 87 133 94 142 101 151 108 160 114 169 120 178 125 184 130 191 l h8 3,00 3,30 3,50 3,80 4,00 4,30 4,50 4,80 5,00 5,80 6,00 6,80 7,00 7,80 8,00 8,80 9,00 9,80 10,00 10,75 11,00 11,75 12,00 12,75 13,00 13,75 14,00 14,75 15,00 15,75 16,00 16,75 17,00 17,75 18,00 When intermediate sizes are needed, reference should be made to Table for the corresponding lengths Flute portion: — Tolerance on diameter, , measured near the point: h8; — Back taper: at the manufacturer’s discretion d S h a n k: T he s e d r i l l s a re no r m a l l y m ade witho ut d r i vi n g te no n See Table 2 © ISO 2016 – All rights reserved ISO 7079:2016(E) Table (continued) l1 l 135 198 140 205 d h8 18,70 19,00 19,70 When intermediate sizes are needed, reference should be made to Table for the corresponding lengths Flute portion: — Tolerance on diameter, d, measured near the point: h8; — Back taper: at the manufacturer’s discretion Shank: These drills are normally made without driving tenon See Table T a b l e — C o r r e s p o n d i n g l e n g t h s s e t o u t a s a f u n c t i o n o f d i a m e t e r r a n g e s Dimensions in millimetres D over — 3,00 3,35 3,75 4,25 4,75 5,30 6,00 6,70 7,50 8,50 9,50 10,60 11,80 13,20 14,00 15,00 16,00 17,00 18,00 19,00 i a m e t e r d r a n g e s Up to and including 3,00 3,35 3,75 4,25 4,75 5,30 6,00 6,70 7,50 8,50 9,50 10,60 11,80 13,20 14,00 15,00 16,00 17,00 18,00 19,00 20,00 Tolerance on lengths Lengths, l and l1 , may vary within C l1 33 36 39 43 47 52 57 63 69 75 81 87 94 101 108 114 120 125 130 135 140 o r r e s p o n d i n g l e n g t h s l 61 65 70 75 80 86 93 101 109 117 125 133 142 151 160 169 178 184 191 198 205 one diameter range, between the minimum and maximum limits corresponding respectively to the figures given for the nearest lower or upper range EXAMPLE For diameter mm, length l1 may vary between 39 mm and 47 mm about nominal value 43 mm, and length l may vary between 70 mm and 80 mm about nominal value 75 mm © ISO 2016 – All rights reserved ISO 7079:2016(E) Core drills with Morse taper shanks See Figure and Tables and optional recess Morse taper (ISO 96) K e y F i g u r e Table — Dimensions for the preferred diameters d l 75 156 81 162 87 168 94 175 101 182 108 189 114 212 120 218 125 223 l h 7,80 8,00 8,80 9,00 9,80 10,00 10,75 11,00 11,75 12,00 12,75 13,00 13,75 14,00 14,75 15,00 15,75 16,00 16,75 17,00 Dimensions in millimetres Morse taper no When intermediate sizes are needed, reference should be made to Table for the corresponding lengths Flute portion: — Tolerance on diameter measured near the point: h8; — Back taper : at the manufacturer’s discretion Shank: In accordance with ISO 296 See Table d © ISO 2016 – All rights reserved ISO 7079:2016(E) Table (continued) d h8 17,75 18,00 18,70 19,00 19,70 20,00 20,70 21,00 21,70 22,00 22,70 23,00 23,70 24,00 24,70 25,00 25,70 26,00 27,70 28,00 29,70 30,00 31,60 32,00 33,60 34,00 34,60 35,00 35,60 36,00 37,60 38,00 39,60 40,00 41,60 42,00 l1 l 130 228 135 233 140 238 145 243 150 248 155 253 160 281 165 286 170 291 175 296 185 185 190 306 334 339 195 344 200 349 205 354 Morse taper no When intermediate sizes are needed, reference should be made to Table for the corresponding lengths Flute portion: — Tolerance on diameter d measured near the point: h8; — Back taper : at the manufacturer’s discretion Shank: In accordance with ISO 296 See Table © ISO 2016 – All rights reserved ISO 7079:2016(E) Table (continued) d h8 43,60 44,00 44,60 45,00 45,60 46,00 47,60 48,00 49,60 50,00 l1 l 210 359 215 364 220 369 Morse taper no When intermediate sizes are needed, reference should be made to Table for the corresponding lengths Flute portion: — Tolerance on diameter d measured near the point: h8; — Back taper : at the manufacturer’s discretion Shank: In accordance with ISO 296 See Table © ISO 2016 – All rights reserved ISO 7079:2016(E) Table — Corresponding lengths set out as a function of diameter ranges Dimensions in millimetres Diameter ranges over 7,50 8,50 9,50 10,60 11,80 13,20 14,00 15,00 16,00 17,00 18,00 19,00 20,00 21,20 22,40 d Up to and including 8,50 9,50 10,60 11,80 13,20 14,00 15,00 16,00 17,00 18,00 19,00 20,00 21,20 22,40 23,02 Tolerance on lengths Lengths, and , may Corresponding lengths l 75 81 87 94 101 108 114 120 125 130 135 140 145 150 155 156 162 168 175 182 189 212 218 223 228 233 238 243 248 253 l Morse taper no Diameter ranges over 23,02 23,60 25,00 26,50 28,00 30,00 31,50 31,75 33,50 35,50 37,50 40,00 42,50 45,00 47,50 d Up to and including 23,60 25,00 26,60 28,00 30,00 31,50 31,75 33,50 35,50 37,50 40,00 42,50 45,00 47,50 50,00 Corresponding lengths l l 155 160 165 170 175 180 185 190 195 200 205 210 215 220 276 281 286 291 296 301 306 334 339 344 349 354 359 364 369 Morse taper no l l vary within one diameter step, between the minimum and maximum limits corresponding respectively to the figures given for the nearest lower or upper step (increased or reduced, as far as the total length is concerned, by the di fference between the lengths o f the two tapers, i f the taper, i f the taper combined with one o f the two adjacent steps is larger or smaller than that o f the step in question) EXAMPLE For diameter 15 mm, length l1 may vary between 108 mm and 120 mm from the nominal value 114 mm, with a tolerance ±6 As the tolerance for l is the same as that for l1 (±6), l can vary between 206 mm and 218 mm from the nominal value 212 mm Core drills for pre- finishing operations The amount of stock removal according to Table is recommended, with the diameters of the core drills calculated accordingly Table — Stock removal and diameters for core drill pre- finishing Dimensions in millimetres Diameters over — 10 18 30 © ISO 2016 – All rights reserved d Stock removal up to and including 10 18 30 50 0,20 0,25 0,30 0,40 ISO 7079:2016(E) Annex A (informative) R e l a t i o n s h i p b e t w e e n d e s i g n a t i o n s i n t h i s I n t e r n a t i o n a l S t a n d a r d and ISO 13399 (all parts) For relation sh ip b e twe en de s ignation s i n th i s I nternationa l Sta nda rd and pre ferre d s ymb ol s accord i ng to ISO 13399 (all parts), see Table A.1 T a b l e A — R e l a t i o n s h i p b e t w e e n d e s i g n a t i o n s i n t h i s I n t e r n a t i o n a l S t a n d a r d a n d ISO 13399 (all parts) S y m b o l i n ISO 7079 d l l Reference in ISO 7079 Figures and Tables and Tables and Figures and Tables and Tables and Figures and Tables and Tables and S P r o p e r t y n a m e i ISO 13399 (all parts) cutting diameter len g th ch ip flute overall length y m b o l i n ISO 13399 (all parts) n Reference in ISO 13399 (all parts) DC 71D084653E57F LCF 71DCCC27DEF53 OAL 71D078EB7C086 © ISO 2016 – All rights reserved ISO 7079: 01 6(E) Bibliography [1] ISO 13399 (all parts), Cutting tool data representation and exchange © ISO 2016 – All rights reserved ISO 7079: 01 6(E) ICS 25.100.30 Price based on pages © ISO 2016 – All rights reserved