Widely used in RC Hobby, Bench Work, for Precision Engineering. Disassembling hex screw in most rc cars, rc boat, rc helicopter, rc quadcopter, multi- FPV racing and. 7 Hex Screwdriver. Set of 7 Hex Screwdrivers (0.9mm /. 27mm /. 3mm. 5mm / 2.0mm / 2.5mm / 3.0mm).
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