Reaffirmed 2018

1. Scope

This standard specifies dimensions and other requirements for solid carbide parallel shank twist drills, stub series.

2. References

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

IS No. Title

919 (Part 2) : 1993 ISO system of limits and fits: Part 2 Tables of standard tolerance grades and limit deviations for holes and shafts (first revision)

2102 (Part 1) : 1993 General tolerances: Part 1 Tolerances for linear and angular dimensions without individual tolerance indications (third revision)

2428 : 2007 Classification and application of hard cutting materials for material removal with defined cutting edges - Designation of the main groups and groups of application (second revision)