Handle(will not fall off from electric screwdriver or manual 1/4" hex driver). 10 Hex Screwdriver Bit. 1/4" hex shank(for all cord/cordless drills, wrenches and electric screwdrivers, etc.). 10pcs different head sizes: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10mm, 12mm.
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