1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Parallel shank jobber and stub series drills and Morse taper shank drillsBS ISO 235:2016National forewordThis British Standard is the UK implementation of ISO 235:2016.The UK participation in its preparation was entrust
2、ed to Technical Committee MTE/18, Tools tips and inserts for cutting 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 c
3、orrect application. The British Standards Institution 2016 Published by BSI Standards Limited 2016ISBN 978 0 580 83624 4ICS 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 St
4、rategy Committee on 30 November 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 235:2016 ISO 2016Parallel shank jobber and stub series drills and Morse taper shank drillsForets queue cylindrique courts et extra-courts et forets queue cne MorseINTERNATIONAL
5、 STANDARDISO235Third edition2016-11-01Reference numberISO 235:2016(E)BS ISO 235:2016ISO 235:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized
6、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 ISOs member body in the country of the requester.ISO copyright off
7、iceCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 235:2016ISO 235:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Interchangeability 15 Parallel shank twist drills, stub series
8、 . 26 Parallel shank twist drills, jobber series 57 Morse taper shank twist drills . 9Annex A (informative) Relationship between designations in this document and ISO 13399 (all parts) .19Bibliography .20 ISO 2016 All rights reserved iiiContents PageBS ISO 235:2016ISO 235:2016(E)ForewordISO (the Int
9、ernational 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. Each member body interested in a subject for which a technical committee ha
10、s 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 of electrotechnical
11、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 different types of ISO documents should be noted. This document was drafted in acc
12、ordance 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 not be held responsible for identifying any or all such patent rights. Detai
13、ls of any patent rights identified during the development of 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 information given for the convenience of users and does not constitute an end
14、orsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, 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/foreword.htm
15、l.The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 2, Holding tools, adaptive items and interfaces.This third edition cancels and replaces the second edition (ISO 235:1980), of which it constitutes a minor revision, notably with the addition of Annex A, which gi
16、ves the relationship between the designations of this document and the ISO 13399 series. It also incorporates the Technical Corrigendum ISO 235:1980/Cor 1:1996.iv ISO 2016 All rights reservedBS ISO 235:2016Parallel shank jobber and stub series drills and Morse taper shank drills1 ScopeThis document
17、specifies the dimensions of the following three types of drills:a) parallel shank drills, stub series;b) parallel shank drills, jobber series;c) Morse taper shank drills.It comprises, for each type of drill mentioned above, three tables giving, respectively:a) the dimensions in millimetres;b) the di
18、mension in inches;c) the corresponding lengths, in millimetres and in inches, set out as functions of diameter steps.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminologica
19、l databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 InterchangeabilityThe numerical tables have been drawn up in such a way as to ensure that the standard dimen
20、sions in millimetres and inches correspond as closely as possible.To this end, the complete range of diameters has been subdivided into a number of steps, the limits of which have been derived from the preferred number series for the metric values and converted directly from those for the inch value
21、s; the lengths and taper shank dimensions remain the same for the metric and the inch value within a given step.The recommended diameters in the two systems of units of measurement differ, however, and the number of recommended diameters in a given step also differs in one system from that in the ot
22、her.Finally, the tolerance on the diameter of the cutting portion has been standardized solely on the basis of the metric value of h8, converted directly into inches for inch drills.INTERNATIONAL STANDARD ISO 235:2016(E) ISO 2016 All rights reserved 1BS ISO 235:2016ISO 235:2016(E)5 Parallel shank tw
23、ist drills, stub seriesFigure 1Table 1Dimensions in millimetresd l1l d l1l d l1l d l1l0,50 3 20 9,50 40 84 18,50 27, 500,80 5 24 9,80 18,75 64 127 27,75 81 1621,00 6 26 10,00 43 89 19,00 28,001,20 8 30 10,20 19,25 28,251,50 9 32 10,50 19,50 66 131 28,501,80 11 36 10,80 19,75 28,752,00 12 38 11,00 20
24、,00 29,00 84 1682,20 13 40 11,20 47 95 20,25 29,252,50 14 43 11,50 20,50 68 136 29,502,8016 4611,80 20,75 29,753,00 12,00 21,00 30,003,20 18 49 12,20 21,25 30,253,50 20 52 12,50 51 102 21,50 30,503,80 12,80 21,75 70 141 30,75 87 1744,00 22 55 13,00 22,00 31,004,20 13,20 22,25 31,254,50 24 58 13,50 2
25、2,50 31,504,80 13,80 54 107 22,75 31,755,00 26 62 14,00 23,00 72 146 32,005,20 14,25 23,25 32,50 90 1805,50 14,50 56 111 23,50 33,005,80 28 66 14,75 23,75 33,506,00 15,00 24,00 34,006,2031 7015,25 24,25 75 151 34,50 93 1866,50 15,50 58 115 24,50 35,006,80 15,75 24,75 35,507,00 34 74 16,00 25,00 36,0
26、07, 20 16,25 25,25 36,50 96 1937, 50 16,50 60 119 25,50 37,007, 80 16,75 25,75 78 156 37, 508,00 37 79 17,00 26,00 38,008,20 17, 25 26,25 38,508,50 17, 50 62 123 26,50 39,00 100 2008,80 17,75 26,75 39,502 ISO 2016 All rights reservedBS ISO 235:2016ISO 235:2016(E)d l1l d l1l d l1l d l1l9,00 40 84 18,
27、00 27,00 81 162 40,009,20 18,25 64 127 27, 25When intermediate sizes are needed, reference is to be made to Table 3 for the corresponding lengths.Cutting portion Tolerance on diameter, d, measured near the point: h8.For dimensions in inches, direct conversion into inches of the metric values of the
28、tolerance h8. Back taper: at the manufacturers discretion. Hand of cutting, unless otherwise specified: right.Shank: these drills are normally made without driving tenon.For tolerances on lengths, see Table 3.Table 2Dimensions in inchesd l1l d l1l d l1l1/32 3/16 15/16 17/ 322 1/8 4 7/ 321 1/32 3 1/1
29、6 6 1/83/64 5/16 1 3/16 35/64 1 3/643 3/16 6 3/81/16 13/32 1 11/32 9/162 7/ 32 4 3/81 1/165/64 15/32 1 1/2 37/6 4 1 5/643/32 9/16 1 11/16 19/32 1 3/327/6 4 5/8 1 13/16 39/64 2 9/32 4 17/ 32 1 7/6 41/8 11/16 1 15/16 5/8 1 1/8 3 5/16 6 5/89/64 25/32 2 1/16 41/642 3/8 4 11/161 9/645/32 7/8 2 5/32 21/32
30、 1 5/3211/64 15/16 2 9/32 43/64 1 11/643/161 1/32 2 7/1611/16 2 7/16 4 27/ 32 1 3/1613/64 45/64 1 13/64 3 7/16 6 27/ 327/ 321 1/8 2 19/3223/322 1/2 51 7/ 3215/64 47/6 4 1 15/641/4 1 7/ 32 2 3/4 3/4 1 1/417/6 41 5/16 2 29/3249/64 2 19/32 5 5/32 1 17/6 49/32 25/32 1 9/32 3 17/ 32 7 3/3219/64 51/64 1 1
31、9/645/16 1 7/16 3 1/8 13/16 2 11/16 5 11/32 1 5/1621/64 53/64 1 21/6411/321 9/16 3 5/1627/ 32 1 11/3223/64 55/64 2 3/4 5 9/16 1 23/64 3 21/32 7 5/163/8 7/8 1 3/825/64 1 11/16 3 1/2 57/6 4 1 25/6413/32 29/32 2 27/ 32 5 3/4 1 13/3227/6 4 59/64 1 27/6 47/16 1 27/ 32 3 3/4 15/16 1 7/16 3 25/32 7 19/3229
32、/64 61/64 2 15/16 5 15/16 1 29/6415/32 31/32 1 15/32Table 1 (continued) ISO 2016 All rights reserved 3BS ISO 235:2016ISO 235:2016(E)d l1l d l1l d l1l31/64 2 4 63/64 1 31/643 15/16 7 7/81/2 1 3 1/16 6 1/8 1 1/233/64 1 1/64When intermediate sizes are needed, reference is to be made to Table 3 for the
33、corresponding lengths.Cutting portion Tolerance on diameter, d, measured near the point: h8.For dimensions in inches, direct conversion into inches of the metric values of the tolerance h8. Back taper: at the manufacturers discretion. Hand of cutting, unless otherwise specified: right.Shank: these d
34、rills are normally made without driving tenon.For tolerances on lengths, see Table 3.Table 3 Corresponding lengths for parallel shank twist drills, stub series set out as functions of diameterDiameter ranges, d Corresponding lengthsover incl. over incl. l1l l1lmm in mm in0,19 0,24 0,007 5 0,009 41,5
35、191/163/40,24 0,30 0,009 4 0,011 80,30 0,38 0,011 8 0,015 0 2,0 3/320,38 0,48 0,015 0 0,018 9 2,5 3/320,48 0,53 0,018 9 0,020 9 3,0 20 1/8 25/320,53 0,60 0,020 9 0,023 6 3,5 21 1/8 13/160,60 0,67 0,023 6 0,026 4 4,0 22 5/32 7/80,67 0,75 0,026 4 0,029 5 4,5 23 3/16 29/320,75 0,85 0,029 5 0,033 5 5,0
36、24 3/16 15/160,85 0,95 0,033 5 0,037 4 5,5 25 7/ 32 31/320,95 1,06 0,037 4 0,041 7 6,0 26 1/4 1 1/321,06 1,18 0,041 7 0,046 4 7,0 28 9/32 1 3/321,18 1,32 0,046 4 0,052 0 8,0 30 5/16 1 3/161,32 1,50 0,052 0 0,059 1 9,0 32 11/32 1 1/41,50 1,70 0,059 1 0,066 9 10 34 13/32 1 11/321,70 1,90 0,066 9 0,074
37、 8 11 36 7/16 1 7/161,90 2,12 0,074 8 0,083 5 12 38 15/32 1 1/22,12 2,36 0,083 5 0,092 9 13 40 1/2 1 9/162,36 2,65 0,092 9 0,104 3 14 43 9/16 1 11/162,65 3,00 0,104 3 0,118 1 16 46 5/8 1 13/163,00 3,35 0,118 1 0,131 9 18 49 11/16 1 15/163,35 3,75 0,131 9 0,147 6 20 52 25/32 2 1/163,75 4,25 0,147 6 0
38、,167 3 22 55 7/8 2 5/324,25 4,75 0,167 3 0,187 0 24 58 15/16 2 9/324,75 5,30 0,187 0 0,208 7 26 62 1 1/32 2 7/16Table 2 (continued)4 ISO 2016 All rights reservedBS ISO 235:2016ISO 235:2016(E)Diameter ranges, d Corresponding lengthsover incl. over incl. l1l l1lmm in mm in5,30 6,00 0,208 7 0,236 2 28
39、66 1 1/8 2 19/326,00 6,70 0,236 2 0,263 8 31 70 1 7/ 32 2 3/46,70 7, 50 0,263 8 0,295 3 34 74 1 5/16 2 29/327, 50 8,50 0,295 3 0,334 6 37 79 1 7/16 3 3/88,50 9,50 0,334 6 0,374 0 40 84 1 9/16 3 5/169,50 10,60 0,374 0 0,417 3 43 89 1 11/16 3 1/210,60 11,80 0,417 3 0,464 6 47 95 1 27/ 32 3 3/411,80 13
40、,20 0,464 6 0,519 7 51 102 2 413,20 14,00 0,519 7 0,551 2 54 107 2 1/8 4 7/ 3214,00 15,00 0,551 2 0,590 6 56 111 2 7/ 32 4 3/815,00 16,00 0,590 6 0,629 9 58 115 2 9/32 4 17/ 3216,00 17,00 0,629 9 0,669 3 60 119 2 3/8 4 11/1617,00 18,00 0,669 3 0,708 7 62 123 2 7/16 4 27/ 3218,00 19,00 0,708 7 0,748
41、0 64 127 2 1/2 519,00 20,00 0,748 0 0,787 4 66 131 2 19/32 5 5/3220,00 21,20 0,787 4 0,834 6 68 136 2 11/16 5 11/3221,20 22,40 0,834 6 0,881 9 70 141 2 3/4 5 9/1622,40 23,60 0,881 9 0,929 1 72 146 2 27/ 32 5 3/423,60 25,00 0,929 1 0,984 0 75 151 2 15/16 5 15/1625,00 26,50 0,984 0 1,043 3 78 156 3 1/
42、16 6 1/826,50 28,00 1,043 3 1,102 4 81 162 3 3/16 6 3/828,00 30,00 1,102 4 1,181 1 84 168 3 5/16 6 5/830,00 31,50 1,181 1 1,240 2 87 174 3 7/16 6 27/ 3231,50 33,50 1,240 2 1,318 9 90 180 3 17/ 32 7 3/3233,50 35,50 1,318 9 1,397 6 93 186 3 21/32 7 5/1635,50 37, 50 1,397 6 1,476 4 96 193 3 25/32 7 19/
43、3237, 50 40,00 1,476 4 1,574 8 100 200 3 15/16 7 7/8NOTE 1 l and l1may vary, within one diameter step, between the minimum and maximum limits corresponding respectively to the figures given for the nearest lower or upper step. See as examples the note under Table 6 and Table 9.NOTE 2 Standardized di
44、ameters in millimetres and in inches: see Table 1 and Table 2, respectively.6 Parallel shank twist drills, jobber seriesKey1 recess optionalFigure 2Table 3 (continued) ISO 2016 All rights reserved 5BS ISO 235:2016ISO 235:2016(E)Table 4Dimensions in millimetresd l1l d l1l d l1l d l1l d l1l0,202,51,40
45、 3,80 7, 80 11,80 94 1420,22 1,45 18 40 3,90 7,90 11,900,25 1,50 4,00 43 75 8,00 12,000,28 3 19 1,55 4,10 8,10 75 117 12,100,30 1,60 20 43 4,20 8,20 12,200,32 1,65 4,30 8,30 12,300,35 4 1,70 4,40 8,40 12,400,38 1,75 4,50 47 80 8,50 12,50 101 1510,40 1,80 22 46 4,60 8,60 12,600,42 5 20 1,85 4,70 8,70
46、 12,700,45 1,90 4,80 8,80 12,800,48 1,95 4,90 8,90 12,900,506 222,00 24 49 5,00 52 86 9,00 81 125 13,000,52 2,05 5,10 9,10 13,100,55 2,10 5,20 9,20 13,200,58 7 24 2,15 5,30 9,30 13,300,60 2,20 5,40 9,40 13,400,628 262,25 27 53 5,50 9,50 13,500,65 2,30 5,60 9,60 13,60 108 1600,68 2,35 5,70 57 93 9,70
47、 13,700,70 9 28 2,40 5,80 9,80 13,800,72 2,45 5,90 9,90 13,900,75 2,50 30 57 6,00 10,00 14,000,78 2,55 6,10 10,10 87 133 14,250,80 10 30 2,60 6,20 10,20 14,50 114 1690,82 2,65 6,30 10,30 14,750,85 2,70 6,40 63 101 10,40 15,000,88 2,75 6,50 10,50 15,250,90 11 32 2,80 6,60 10,60 15,50 120 1780,92 2,85
48、 33 61 6,70 10,70 15,750,95 2,90 6,80 10,80 16,000,98 2,95 6,90 10,90 16,50125 1841,00 12 34 3,00 7,00 11,00 17,001,05 3,10 7,10 69 109 11,10 17, 50130 1911,1014 363,20 36 65 7, 20 11,20 94 142 18,001,15 3,30 7, 30 11,30 18,50135 1981,20 3,40 7,40 11,40 19,006 ISO 2016 All rights reservedBS ISO 235:
49、2016ISO 235:2016(E)d l1l d l1l d l1l d l1l d l1l1,25 16 38 3,50 39 70 7, 50 11,50 19,50140 2051,30 3,60 7,6075 11711,60 20,001,35 18 40 3,70 7,70 11,70When intermediate sizes are needed, reference is to be made to Table 6 for the corresponding lengths.Cutting portion Tolerance on diameter d measured near the point: h8.For dimensions in inches, direct conversion into inches of the metric values of the tolerance h8. Back taper: at the manufacturers discretion. Hand of cutting, unless otherwise specified: right.Shank: the
