Long Screwdriver Bit Sets 1 4 inch Drive – Star Tamper Tri-Wing and Spanner Bits with Tray

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 With 1/4 inch hex shaft, they are widely used on electric screwdrivers, hand screwdrivers, cordless drills, etc There are different type screwdriver bit heads ,such as: Slotted head, cross head, which convenient to you, can meet your varied requirements Fit for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth