1/4 Hex to Square Drive 1/4 Screwdriver Bit Adapter Holder Socket. Material: chrome vanadium steel Size: 1/4" square hole to 1/4" 6.3mm It is used for screwdriver bit,socket adapter,step drill,chamfer converter Package Included: 1/4" square hole to 1/4" 6.3mm converter (Other accessories are not included). Item may not be exactly like the one pictured but will have the correct sizes as described. Retaining clip styles can vary.
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