Reliable 2pcs Square Drive To Hex Socket Converter Screwdriver Adapter Kit

It is used for screwdriver bit, socket adapter,step drill,chamfer converter. 6.3mm series screwdriver head connector. Quantity: 2pcs. 2x 1/4" square hole to 1/4" hex converter. Size:1/4" square hole to 1/4"(6.3mm).

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