Shank: 1/4 Inch Hex Shank, Length: 3.93 Inch/ 100mm.
Type of Head:Slotted head diam 6mm, diam 5mm, diam 4mm, diam 3mm, Hollow plum T8, T10, T15, T20,Cross Head PH2*Φ4.5, PH2*Φ5, PH2*Φ6. Hex head: H3, H4, H5, H6.
Those Screwdriver Bits are made of S2 alloy steel which is anti-impact and tough, great wear resistant.
Strong magnetic, good workmanship, high precision. each edge can be accurately locked screws, no damage to the screw and the screwdriver head.
Fit for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth