Strong Magnetic: Screwdriver bits can suck the screws easily when used it
Exquisite Workmanship: Each edge can be accurately locked screws, no damage to the screw, and the screwdriver head
Universally Applicable: Can be used for manual electric screwdriver, screwdriver, drill, air and other tools
1/4'' Hex Shank: With 1/4 in hex shaft, they are widely used on electric screwdrivers, hand screwdrivers, electric drills, etc
S2 Material: Adopted of high quality S2 alloy steel, which is anti-impact and tough, great wear resistant