1、BSI Standards PublicationCounterbores with parallel shanks and solid pilotsBS ISO 4206:2016National forewordThis British Standard is the UK implementation of ISO 4206:2016. It supersedes BS 328-7:1992 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MTE
2、/18, Tool 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 correct application. The Britis
3、h Standards Institution 2016 Published by BSI Standards Limited 2016ISBN 978 0 580 83637 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 Strategy Committee on 30 Novemb
4、er 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 4206:2016 ISO 2016Counterbores with parallel shanks and solid pilotsg18g151g150g139g142g149g3g157g3g142g131g143g135g148g481g3g157g3g147g151g135g151g135g3g133g155g142g139g144g134g148g139g147g151g135g3g135g1
5、50g3g146g139g142g145g150g135g3g980g139g154g135INTERNATIONAL STANDARDISO4206Third edition2016-10-15Reference numberISO 4206:2016(E)BS ISO 4206:2016ISO 4206:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerlandg4g142g142g3g148g139g137g138g150g149g3g148g1
6、35g149g135g148g152g135g134g484g3g24g144g142g135g149g149g3g145g150g138g135g148g153g139g149g135g3g149g146g135g133g139g976g139g135g134g481g3g144g145g3g146g131g148g150g3g145g136g3g150g138g139g149g3g146g151g132g142g139g133g131g150g139g145g144g3g143g131g155g3g132g135g3g148g135g146g148g145g134g151g133g135g
7、134g3g145g148g3g151g150g139g142g139g156g135g134g3g145g150g138g135g148g153g139g149g135g3g139g144g3g131g144g155g3g136g145g148g143g3or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested
8、 from either ISO at the address below or ISOs member body in the country of the requester.g12g22g18g3g133g145g146g155g148g139g137g138g150g3g145g136g976g139g133g135Ch. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO
9、4206:2016ISO 4206:2016(E)Foreword iv1 Scope . 12 Dimensions . 1Annex A (informative) Relationship between designations of this International Standard and ISO 13399 . 2Bibliography 3 ISO 2016 All rights reserved iiiContents PageBS ISO 4206:2016ISO 4206:2016(E)ForewordISO (the International Organizati
10、on 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 has been established ha
11、s 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 standardization.The p
12、rocedures 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 accordance with the edit
13、orial 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. Details of g131g144g155g3g
14、146g131g150g135g144g150g3g148g139g137g138g150g149g3g139g134g135g144g150g139g976g139g135g134g3g134g151g148g139g144g137g3g150g138g135g3g134g135g152g135g142g145g146g143g135g144g150g3g145g136g3g150g138g135g3g134g145g133g151g143g135g144g150g3g153g139g142g142g3g132g135g3g139g144g3g150g138g135g3g12g144g150
15、g148g145g134g151g133g150g139g145g144g3g131g144g134g512g145g148g3on 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 endorsement.g9g145g148g3 g131g144g3 g135g154g146
16、g142g131g144g131g150g139g145g144g3 g145g144g3 g150g138g135g3 g143g135g131g144g139g144g137g3 g145g136g3 g12g22g18g3 g149g146g135g133g139g976g139g133g3 g150g135g148g143g149g3 g131g144g134g3 g135g154g146g148g135g149g149g139g145g144g149g3 g148g135g142g131g150g135g134g3 g150g145g3 g133g145g144g136g145g14
17、8g143g139g150g155g3assessment, 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.html.The committee responsible for this document is ISO/TC 29, Small tools, Subcommitte
18、e SC 2, Holding tools, adaptive items and interfaces.This third edition cancels and replaces the second edition (ISO 4206:1991), of which it constitutes a minor revision, notably with the addition of Annex A, which gives the relationship between the designations of this International Standard and th
19、e ISO 13399 series.iv ISO 2016 All rights reservedBS ISO 4206:2016Counterbores with parallel shanks and solid pilots1 Scopeg23g138g139g149g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g3g149g146g135g133g139g976g139g135g149g3g150g138g135g3g134g139g143g135g144g1
20、49g139g145g144g149g481g3g139g144g3g143g139g142g142g139g143g135g150g148g135g149g481g3g131g144g134g3g150g138g135g3g150g145g142g135g148g131g144g133g135g149g3g145g136g3g133g145g151g144g150g135g148g132g145g148g135g149g3with parallel shanks and solid pilots for general use.2 DimensionsThe dimensions and t
21、olerances are shown in Figure 1 and given in Table 1.NOTE Figure 1 illustrating this International Standard is diagrammatic only. It is not intended to show details of design.NOTE This Figure shows a counterbore with cutting diameter d1greater than 5 mm.Figure 1Table 1Cutting diameterd1z9aPilot diam
22、eterd2e8aShank diameterd3h9al1l2l3l4g884g3g950g3d1g3g950g3g885g481g883g887 g7g139g131g143g135g150g135g148g3g150g145g3g132g135g3g149g146g135g133g139g976g139g135g134g3g150g145g3g149g151g139g150g3g146g139g142g145g150g3g138g145g142g135g3diameter, when ordering (minimum possible diameter is d2= 1/3 d1) =
23、 d145 7g947 d23,15 d1g3g950g3g887 56 105 d1g3g950g3g890 71 14 31,58 d1g3g950g3g883g88280 18 35,510 d1g3g950g3g883g884g481g887 1012,5 d1g3g950g3g884g882 12,5 100 22 40aSee ISO 286-2.INTERNATIONAL STANDARD ISO 4206:2016(E) ISO 2016 All rights reserved 1BS ISO 4206:2016ISO 4206:2016(E)Annex A (informat
24、ive) Relationship between designations of this International Standard and ISO 13399For the relationship between the designations of this International Standard and preferred symbols according to ISO 13399, see Table A.1.Table A.1 Relationship between designations of this International Standard and I
25、SO 13399Symbol in ISO 4206Reference in ISO 4206Property name in the ISO 13399 seriesSymbol in the ISO 13399 seriesReference in the ISO 13399 seriesd1Figure 1 Table 1Cutting diameter DC 71D084653E57Fd2Figure 1 Table 1Guide pilot diameter GPD 71ED6A7A6E6A2d3Figure 1 Table 1Connection diameter machine
26、sideDCONMS 71EBDBF5060E6l1Figure 1 Table 1Overall length OAL 71D078EB7C086l3Figure 1 Table 1Shank length LS 71CF298870946l4Figure 1 Table 1Guide pilot length GPL 72724DE9E999Dd3h9 Table 1Tolerance class connection diameter machine sideTCDCONMS 72719B2BD80412 ISO 2016 All rights reservedBS ISO 4206:2
27、016ISO 4206:2016(E)Bibliography1 ISO 286-2, g10g135g145g143g135g150g148g139g133g131g142g3 g146g148g145g134g151g133g150g3 g149g146g135g133g139g980g139g133g131g150g139g145g144g149g3 g523g10g19g22g524g3 g516g3 g12g22g18g3 g133g145g134g135g3 g149g155g149g150g135g143g3 g136g145g148g3 g150g145g142g135g148
28、g131g144g133g135g149g3 g145g144g3 g142g139g144g135g131g148g3g149g139g156g135g149g3g516g3g19g131g148g150g3g888g483g3g23g131g132g142g135g149g3g145g136g3g149g150g131g144g134g131g148g134g3g150g145g142g135g148g131g144g133g135g3g133g142g131g149g149g135g149g3g131g144g134g3g142g139g143g139g150g3g134g135g152
29、g139g131g150g139g145g144g149g3g136g145g148g3g138g145g142g135g149g3g131g144g134g3g149g138g131g136g150g1492 ISO 4205, g6g145g151g144g150g135g148g149g139g144g141g149g481g3g895g886g957g481g3g153g139g150g138g3g146g131g148g131g142g142g135g142g3g149g138g131g144g141g149g3g131g144g134g3g149g145g142g139g134g3
30、g146g139g142g145g150g1493 ISO 13399 (all parts), g6g151g150g150g139g144g137g3g150g145g145g142g3g134g131g150g131g3g148g135g146g148g135g149g135g144g150g131g150g139g145g144g3g131g144g134g3g135g154g133g138g131g144g137g135 ISO 2016 All rights reserved 3BS ISO 4206:2016g23g138g139g149g3g146g131g137g135g3g
31、134g135g142g139g132g135g148g131g150g135g142g155g3g142g135g136g150g3g132g142g131g144g141BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardiza
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