IS 844 : Part 3 : 1979 : Screw Drivers - Part III : Dimensions for Screw Drivers for Recessed Head Screws
| UDC 621.883.7 : 006.78 : 621.882.215.6 | PGD 34 |
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| Reaffirmed 2021 |
1. Scope
Cover s dimens iona l and othe r requirement s for screw dr iver s int ende d for recessed head screws.