(Superseding IS 14864 : 2000 and IS 14865 : 2001)

Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) which is identical with ISO 5609-1 : 2012 ‘Tool holders for internal turning with cylindrical shank for indexable inserts — Part 1: Designation, styles, dimensions and calculation for corrections’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Cutting Tools Sectional Committee and approval of the Production and General Engineering Division Council.

This standard supersedes IS 14864 : 2000 ‘Boring bars (tool holders with cylindrical shank) for indexable inserts — Designation’ identical with ISO 6261 : 1995 and IS 14865 : 2001 ‘Boring bars for indexable inserts — Dimensions’ identical with ISO 5609 : 1998. ISO has decided to merge ISO 5609 : 1998 and ISO 6261 : 1995 and brought out consolidated standard as ISO 5609-1 : 2012 ‘Tool holders for internal turning with cylindrical shank for indexable inserts — Part 1: Designation, styles, dimensions and calculation for corrections’. Similarly the Committee has decided to adopt this standard in a single number series as IS/ISO 5609-1 : 2012 by superseding IS 14864 : 2000 and IS 14865 : 2001. After the publication of this standard IS 14864 : 2000 and IS 14865 : 2001 shall be treated as withdrawn.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminology and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker