ISO INTERNATIONAL STANDARD 238 Second edition 2016-11-15 Reduction sleeves and extension sockets for tools with Morse taper shanks Douilles de reduction et allonges pour outils au cone Morse Reference number A ISO 238:2016(E) ISO International Organization for Standardization @IS02016 vided by IHS under ted without license from IHS IS0 238:2016(E) COPYRIGHTPROTECTEDDOCUMENT 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 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 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+412274909 47 [email protected] www.iso.org Intenationai br PrganizationforStandardization I by IHS unde etworking permitted without license from IHS IS0 238:2016(E) Contents Page Foreword ..iv 1 Scope 1 2 Normativereferences ..1 3 Terms and definitions 4 Interchangeability 4.1 General. 1 4.2 Reduction sleeves 4.3 Extension sockets .1 5 Reduction sleeves for tools with Morse taper shanks ..2 6 Extension sockets for tools with Morse taper shanks .4 Annex A (informative) Relationship between designations in this document and Is0 13399 .8 Bibliography 9 iii thout license from IHS