Proto J7121 Sq. M 7/16" Hex Shank Extension Bit 1/2"
SKU # J7121
This Extension Bit has an overall length of 2-3/4"
7/16" hex shank
1/2" male square
Pin socket retention
One-piece construction ensures concentricity
Special heat treat ensures long life
Precision machined tips for proper fastener engagement
7/16" hex shank
1/2" male square
Pin socket retention
One-piece construction ensures concentricity
Special heat treat ensures long life
Precision machined tips for proper fastener engagement
- Length 2-3/4"
- Specifications Fed'l Specs.: GGG-W-641E
- ANSI Spec.: B107.1
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