What¡¯s in package: 10PCS 5/16 inch (8mm)Nut Driver Bits. Length:1.65inch (42mm).
Premium Material: 5/16'' Nut Driver Bit is made from shock-resisting Chrome Vanadium Steel for maximum durability.
Magnet Socket: Each 5/16'' Socket end has a magnet inside, which can attract screw nuts easily, and make it easy to take the screw nuts out after unraveling.
5/16'' (8mm) nut drivers are most commonly used by HVAC techs. This is a basic tool set for any HVAC technician.
1/4' Hex Shank: Can be widely used in electric drills, electric screwdrivers, hand screwdrivers, and air drills., etc.
