Screw driver bit Socket tool for screw, bolt 1/4 inch Alloy steel material Hex head M5 to M6

Power Screw Driver Bit

Compatiable for ANSI UNC inch bolts and screws 1/4-20 (thread size)

Hex holder size M5, M6 options

Length from 50 to 200mm

Industrial Grade Stee 

Universal tool set and DIY box

Customized available!

hex rod screw driver bit