A Set of Screwdriver Bit Adapter Precision Micro Hex bits holder : 4mm - 1/4"

Precision hex bits (4mm) in normal 1/4" (6.35mm) hex screwdriver bit holder. Make sure you have a suitable screwdriver that accept hex bits or a hex screwdriver bit holder. Normal 1/4" (6.35mm) hex bits in a precision screwdriver bit holder (4mm).

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