1、BSI Standards PublicationCore drills with parallel shanks and with Morse taper shanksBS ISO 7079:2016National forewordThis British Standard is the UK implementation of ISO 7079:2016.The UK participation in its preparation was entrusted to Technical Committee MTE/18, Tool tips and inserts for cutting
2、 applications.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016 Published
3、 by BSI Standards Limited 2016ISBN 978 0 580 83639 8ICS 25.100.30Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016.Amendments/corrigenda issued s
4、ince publicationDate Text affectedBRITISH STANDARDBS ISO 7079:2016 ISO 2016Core drills with parallel shanks and with Morse taper shanksForets-alseurs queue cylindrique et queue cne MorseINTERNATIONAL STANDARDISO7079Second edition2016-10-15Reference numberISO 7079:2016(E)BS ISO 7079:2016ISO 7079:2016
5、(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerlandg4g142g142g3g148g139g137g138g150g149g3g148g135g149g135g148g152g135g134g484g3g24g144g142g135g149g149g3g145g150g138g135g148g153g139g149g135g3g149g146g135g133g139g976g139g135g134g481g3g144g145g3g146g131g148
6、g150g3g145g136g3g150g138g139g149g3g146g151g132g142g139g133g131g150g139g145g144g3g143g131g155g3g132g135g3g148g135g146g148g145g134g151g133g135g134g3g145g148g3g151g150g139g142g139g156g135g134g3g145g150g138g135g148g153g139g149g135g3g139g144g3g131g144g155g3g136g145g148g143g3or by any means, electronic or
7、 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 ISOs member body in the country of the requester.g12g22g18g3g133g145g146g155g148g139g137g138g150g3g145g136g976g139g133
8、g135Ch. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 7079:2016ISO 7079:2016(E)Foreword iv1 Scope . 12 Normative references 13 Core drills with parallel shanks 14 Core drills with Morse taper shanks 4g887g3 g6g145
9、g148g135g3g134g148g139g142g142g149g3g136g145g148g3g146g148g135g486g976g139g144g139g149g138g139g144g137g3g145g146g135g148g131g150g139g145g144g149 . 7Annex A (informative) Relationship between designations in this International Standard and ISO 13399 (all parts) 8Bibliography 9 ISO 2016 All rights res
10、erved iiiContents PageBS ISO 7079:2016ISO 7079:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. E
11、ach 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 Internati
12、onal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the differen
13、t types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall no
14、t be held responsible for identifying any or all such patent rights. Details of g131g144g155g3g146g131g150g135g144g150g3g148g139g137g138g150g149g3g139g134g135g144g150g139g976g139g135g134g3g134g151g148g139g144g137g3g150g138g135g3g134g135g152g135g142g145g146g143g135g144g150g3g145g136g3g150g138g135g3g1
15、34g145g133g151g143g135g144g150g3g153g139g142g142g3g132g135g3g139g144g3g150g138g135g3g12g144g150g148g145g134g151g133g150g139g145g144g3g131g144g134g512g145g148g3on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the c
16、onvenience of users and does not constitute an endorsement.g9g145g148g3 g131g144g3 g135g154g146g142g131g144g131g150g139g145g144g3 g145g144g3 g150g138g135g3 g143g135g131g144g139g144g137g3 g145g136g3 g12g22g18g3 g149g146g135g133g139g976g139g133g3 g150g135g148g143g149g3 g131g144g134g3 g135g154g146g148g
17、135g149g149g139g145g144g149g3 g148g135g142g131g150g135g134g3 g150g145g3 g133g145g144g136g145g148g143g139g150g155g3assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/f
18、oreword.html.The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 2, Holding tools, adaptive items and interfaces.g23g138g139g149g3g149g135g133g145g144g134g3g135g134g139g150g139g145g144g3g133g131g144g133g135g142g149g3g131g144g134g3g148g135g146g142g131g133g135g149g3g
19、150g138g135g3g976g139g148g149g150g3g135g134g139g150g139g145g144g3g523g12g22g18g3g889g882g889g891g483g883g891g890g883g524g481g3g145g136g3g153g138g139g133g138g3g139g150g3g133g145g144g149g150g139g150g151g150g135g149g3g131g3g143g139g144g145g148g3revision, notably with the addition of Annex A, which give
20、s the relationship between the designations of this International Standard and the ISO 13399 series.iv ISO 2016 All rights reservedBS ISO 7079:2016Core drills with parallel shanks and with Morse taper shanks1 Scopeg23g138g139g149g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g
21、134g131g148g134g3g149g146g135g133g139g976g139g135g149g3g150g138g135g3g134g139g143g135g144g149g139g145g144g149g3g145g136g3g133g145g148g135g3g134g148g139g142g142g149g3g153g139g150g138g3g146g131g148g131g142g142g135g142g3g149g138g131g144g141g149g3g131g144g134g3g153g139g150g138g3g16g145g148g149g135g3tape
22、r shanks.g12g150g3g139g144g133g142g151g134g135g149g3g150g153g145g3g150g131g132g142g135g149g3g136g145g148g3g135g131g133g138g3g145g136g3g150g138g135g3g131g132g145g152g135g3g149g146g135g133g139g976g139g135g134g3g150g155g146g135g149g481g3g137g139g152g139g144g137g3g148g135g149g146g135g133g150g139g152g135
23、g142g155 the dimensions for the preferred diameter (see Tables 1 and 2), andg516g3 g150g138g135g3g133g145g148g148g135g149g146g145g144g134g139g144g137g3g142g135g144g137g150g138g149g3g134g135g976g139g144g135g134g3g139g144g3g150g135g148g143g149g3g145g136g3g134g139g131g143g135g150g135g148g3g148g131g144g
24、137g135g149g3g523g149g135g135g3Tables 3 and 4).The tables show only metric dimensions which are alone recommended in the future for this type of drill.Unless otherwise stated, these drills will be right-hand cutting drills.2 Normative referencesThe following documents, in whole or in part, are norma
25、tively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 296, Machine tools Self-holding tapers for tool shanks3 Cor
26、e drills with parallel shanksSee Figure 1 and Tables 1 and 2.Key1 optional recessFigure 1INTERNATIONAL STANDARD ISO 7079:2016(E) ISO 2016 All rights reserved 1BS ISO 7079:2016ISO 7079:2016(E)Table 1 Dimensions for the preferred diametersDimensions in millimetresdh8l1l3,00 33 613,30 36 653,50 39 703,
27、80 43 754,004,30 47 804,504,80 52 865,005,80 57 936,006,80 69 1097,007, 80 75 1178,008,80 81 1259,009,80 87 13310,0010,75 94 14211,0011,7512,00 101 15112,7513,0013,75 108 16014,0014,75 114 16915,0015,75 120 17816,0016,75 125 18417,0017,75 130 19118,00When intermediate sizes are needed, reference sho
28、uld be made to Table 2 for the corresponding lengths.Flute portion: Tolerance on diameter, d, measured near the point: h8; Back taper: at the manufacturers discretion.Shank: These drills are normally made without driving tenon.See Table 2.2 ISO 2016 All rights reservedBS ISO 7079:2016ISO 7079:2016(E
29、)dh8l1l18,70 135 19819,0019,70 140 205When intermediate sizes are needed, reference should be made to Table 2 for the corresponding lengths.Flute portion: Tolerance on diameter, d, measured near the point: h8; Back taper: at the manufacturers discretion.Shank: These drills are normally made without
30、driving tenon.See Table 2.Table 2 Corresponding lengths set out as a function of diameter rangesDimensions in millimetresDiameter ranges dCorresponding lengthsover Up to and including l1l3,0 3 613,00 3,35 36 653,35 3,75 39 703,75 4,25 43 754,25 4,75 47 804,75 5,30 52 865,30 6,00 57 936,00 6,70 63 10
31、16,70 7,50 69 1097, 50 8, 50 75 1178,50 9,50 81 1259,50 10,60 87 13310,60 11,80 94 14211,80 13,20 101 15113,20 14,00 108 16014,00 15,00 114 16915,00 16,00 120 17816,00 17,00 125 18417,00 18,00 130 19118,00 19,00 135 19819,00 20,00 140 205Tolerance on lengthsLengths, l and l1, may vary within one dia
32、meter range, between the minimum and maximum limits corresponding g148g135g149g146g135g133g150g139g152g135g142g155g3g150g145g3g150g138g135g3g976g139g137g151g148g135g149g3g137g139g152g135g144g3g136g145g148g3g150g138g135g3g144g135g131g148g135g149g150g3g142g145g153g135g148g3g145g148g3g151g146g146g135g1
33、48g3g148g131g144g137g135g484EXAMPLE For diameter 4 mm, length l1may 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.Table 1 (continued) ISO 2016 All rights reserved 3BS ISO 7079:2016ISO 7079:2016(E)4 Core drills with Mor
34、se taper shanksSee Figure 2 and Tables 3 and 4.Key1 optional recess 2 Morse taper (ISO 296)Figure 2Table 3 Dimensions for the preferred diametersDimensions in millimetresd h8l1l Morse taper no.7, 80 75 1568,008,80 81 1629,009,80 87 16810,0010,75 94 17511,00 111,7512,00 101 18212,7513,0013,75 108 189
35、14,0014,75 114 21215,0015,75 120 218 216,0016,75 125 22317,00When intermediate sizes are needed, reference should be made to Table 4 for the corresponding lengths.Flute portion: Tolerance on diameter d measured near the point: h8; Back taper : at the manufacturers discretion.Shank: In accordance wit
36、h ISO 296.See Table 4.4 ISO 2016 All rights reservedBS ISO 7079:2016ISO 7079:2016(E)d h8l1l Morse taper no.17,75 130 22818,0018,70 135 23319,0019,70 140 23820,0020,70 145 24321,0021,70 150 24822,0022,70 155 25323,0023,70 160 28124,0024,7025,0025,70 165 286 326,0027,70 170 29128,0029,70 175 29630,003
37、1,60 185 30632,00 185 33433,60 190 33934,0034,6035,0035,60 195 344 436,0037,60 200 34938,0039,6040,0041,60 205 35442,00When intermediate sizes are needed, reference should be made to Table 4 for the corresponding lengths.Flute portion: Tolerance on diameter d measured near the point: h8; Back taper
38、: at the manufacturers discretion.Shank: In accordance with ISO 296.See Table 4.Table 3 (continued) ISO 2016 All rights reserved 5BS ISO 7079:2016ISO 7079:2016(E)d h8l1l Morse taper no.43,60 210 35944,0044,6045,0045,60 215 36446,0047,60 220 36948,0049,6050,00When intermediate sizes are needed, refer
39、ence should be made to Table 4 for the corresponding lengths.Flute portion: Tolerance on diameter d measured near the point: h8; Back taper : at the manufacturers discretion.Shank: In accordance with ISO 296.See Table 4.Table 3 (continued)6 ISO 2016 All rights reservedBS ISO 7079:2016ISO 7079:2016(E
40、)Table 4 Corresponding lengths set out as a function of diameter rangesDimensions in millimetresDiameter ranges dCorresponding lengths Diameter ranges dCorresponding lengthsover Up to and includingl1l Morse taper no.over Up to and includingl1l Morse taper no.7, 50 8, 50 75 156123,02 23,60 155 27638,
41、50 9,50 81 162 23,60 25,00 160 2819,50 10,60 87 168 25,00 26,60 165 28610,60 11,80 94 175 26,50 28,00 170 29111,80 13,20 101 182 28,00 30,00 175 29613,20 14,00 108 189 30,00 31,50 180 30114,00 15,00 114 212231,50 31,75 185 30615,00 16,00 120 218 31,75 33,50 334416,00 17,00 125 223 33,50 35,50 190 33
42、917,00 18,00 130 228 35,50 37,50 195 34418,00 19,00 135 233 37,50 40,00 200 34919,00 20,00 140 238 40,00 42,50 205 35420,00 21,20 145 243 42,50 45,00 210 35921,20 22,40 150 248 45,00 47,50 215 36422,40 23,02 155 253 47,50 50,00 220 369Tolerance on lengths Lengths, l and l1, may vary within one diame
43、ter step, between the minimum and maximum limits corresponding g148g135g149g146g135g133g150g139g152g135g142g155g3g150g145g3g150g138g135g3g976g139g137g151g148g135g149g3g137g139g152g135g144g3g136g145g148g3g150g138g135g3g144g135g131g148g135g149g150g3g142g145g153g135g148g3g145g148g3g151g146g146g135g148g
44、3g149g150g135g146g3g523g139g144g133g148g135g131g149g135g134g3g145g148g3g148g135g134g151g133g135g134g481g3g131g149g3g136g131g148g3g131g149g3g150g138g135g3g150g145g150g131g142g3g142g135g144g137g150g138g3g139g149g3concerned, by the difference between the lengths of the two tapers, if the taper, if the
45、taper combined with one of the two adjacent steps is larger or smaller than that of the step in question).EXAMPLE For diameter 15 mm, length l1may 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 betwee
46、n 206 mm and 218 mm from the nominal value 212 mm.g887g3 g6g145g148g135g3g134g148g139g142g142g149g3g136g145g148g3g146g148g135g486g976g139g144g139g149g138g139g144g137g3g145g146g135g148g131g150g139g145g144g149The amount of stock removal according to Table 5 is recommended, with the diameters of the co
47、re drills calculated accordingly.g23g131g132g142g135g3g887g3g516g3g22g150g145g133g141g3g148g135g143g145g152g131g142g3g131g144g134g3g134g139g131g143g135g150g135g148g149g3g136g145g148g3g133g145g148g135g3g134g148g139g142g142g3g146g148g135g486g976g139g144g139g149g138g139g144g137Dimensions in millimetres
48、DiametersdStock removalover up to and including100,210 18 0,2518 30 0,3030 50 0,40 ISO 2016 All rights reserved 7BS ISO 7079:2016ISO 7079:2016(E)Annex A (informative) Relationship between designations in this International Standard and ISO 13399 (all parts)For relationship between designations in th
49、is International Standard and preferred symbols according to ISO 13399 (all parts), see Table A.1.Table A.1 Relationship between designations in this International Standard and ISO 13399 (all parts)Symbol in ISO 7079Reference in ISO 7079Property name in ISO 13399 (all parts)Symbol in ISO 13399 (all parts)Reference in ISO 13399 (all parts)dFigures 1 and 2Tables 1 and 2Tables 3 and 4cutting diameter DC 71D084653E57Fl1Figures 1 and 2Tables 1 and 2Tables 3 and 4g142g135g144g137g150g138g3g133g138g139g146g3g9
