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1、BRITISH STANDARD BS 5621:1992 ISO 5468:1992 Specification for Dimensions of rotary masonry and rotary masonry impact drills with hardmetal tips Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5621:1992 This British Standard, having been p
2、repared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 July 1992 BSI 08-1999 First published August 1979 Second edition July 1992 The following BSI references relate to the
3、work on this standard: Committee reference MTE/5 Draft for comment 90/79085 DC ISBN 0 580 20932 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee
4、 MTE/5, upon which the following bodies were represented: Advanced Manufacturing Technology Research Institute Federation of British Engineers Tool Manufacturers Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, U
5、ncontrolled Copy, (c) BSI BS 5621:1992 BSI 08-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative reference1 3Dimensions1 Figure 11 Table 12 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2
6、006, Uncontrolled Copy, (c) BSI BS 5621:1992 ii BSI 08-1999 National foreword This British Standard has been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee. It is identical with ISO 5468:1992 Rotary and rotary impact masonry drill bits with hardmetal
7、 tips Dimensions which was prepared by Technical Committee TC 29, Small tools, of the International Organization for Standardization (ISO). This standard supersedes BS 5621:1979, which is withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users of B
8、ritish Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference International StandardCorresponding British Standard ISO 286-1:1988BS 4500 ISO limits and fits Section 1.1:1990 Specification
9、for bases of tolerances, deviations and fits (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated.
10、This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5621:1992 BSI 08-19991 1 Scope This International Standard specifies the dimensions, in millimetres, of rotary and ro
11、tary impact masonry drill bits with hardmetal tips, having diameters in the range 4 mm to 25 mm inclusive and overall and working lengths in the series short, long and extra long. It does not apply to hammer drills. 2 Normative reference The following standard contains provisions which, through refe
12、rence in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the m
13、ost recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 286-1:1988, ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits. 3 Dimensions The dimensions and tolerances are shown in Figure 1 a
14、nd given in Table 1. The tolerance for the cutting diameter, d, is + IT14 maximum value and + IT 12 minimum value on diameter d (see ISO 286-1). Figure 1 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5621:1992 2 BSI 08-1999 Table 1 dSho
15、rt seriesLong seriesExtra long series (wall break through) Chuck sizea nom.tol.Overall length Working length Overall length Working length Overall length Working length Overall length Working length + IT14 + IT12 L. lL. lL. lL. l 4 + 0,30 + 0,12 753910 4,5 8539 15085 10 or 13 5 5,5 6 100546,5 + 0,36
16、 + 0,15 7 8 12080 200135 10, 13 or 16 9 10 11 + 0,43 + 0,18 15090 12220150400350600550 13 14 400350600550 15 16 18 160100 20 + 0,52 + 0,21 13 or 16 22 24 25600550 a Required size depending upon the actual diameter of the shank. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:0
17、0 2006, Uncontrolled Copy, (c) BSI BS 5621:1992 BSI 08-1999 List of references See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5621:1992 ISO 5468:1992 BSI 389 Chiswick High Road London W4 4AL BSI British Standards I
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26、 size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:41:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI