Hex Shank Screwdriver Bit Holder Extension Bar Keychain Driver screwdriver bit manufacturer oem factory china

Strong steel support, durable, heavy construction, long service life.

Expand the conversion of various screwdriver heads and screwdriver heads

General purpose 1/4 "Quick hex shank and 1/4" hex socket are suitable for most electric screwdrivers, hand-held screwdrivers and drill bits.

Small and portable, easy to carry.