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Grainger Grooving KCG 3094R A65 Unc 10 pcs.
Supplier: Grainger 170NM4
The 170NM4 is a 1/4" hex drive, 3/8" square drive socket adapter made by Proto. It allows you to use 1/4" hex drive tools with 3/8" square drive sockets and accessories. This chrome vanadium steel adapter has a knurled grip and measures 1-1/4" long. It converts between the two common hand tool drive sizes, increasing versatility. The adapter's compact size makes it convenient to keep in your toolbox for jobs requiring both hex and square drives.
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