ISO INTERNATIONAL STANDARD 4206 Third edition 2016-10-15 Counterbores with parallel shanks and solid pilots Outils a lamer, a queue cylindrique et pilote fixe Reference number IS0 4206:2016(E) ISO @ IS0 2016 IS0 4206:2016(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form orbyanymeans,electronic ormechanical,includingphotocopying,orpostingontheinternet oranintranet,withoutprior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41227490947 [email protected] www.iso.org @ IS0 2016 - All rights reserved IS0 4206:2016(E) Contents Page Foreword ..iv Scope. ..1 2 Dimensions .1 Annex A (informative) Relationship between designations of this International Standard and Is013399 2 Bibliography ..3 CopyightIntemational orgizISAt2SahharaizAll rights reserved iii