[INCLUDED COMPONENTS] 5x Saxton - 89mm magnetic impact driver bits PZ3 - supplied in a reusable storage pouch [ULTIMATE DURABILITY] Made of high quality S2 alloy impact resistant steel. Hardness 62HRC which can be used on high strength working situations [FINE TOOTH DESIGN] Anti-slip fine tooth design makes sure that each edge can be accurately locked into the screws [SPECIAL FEATURES] Special coating to protect the surface, rust-proof, extra strong magnetism, more powerful than normal cheap screwdriver bits [STANDARD FITTING] 1/4 hex shank, perfect fit for impact drivers, most hand screwdrivers, electric screwdrivers, electric drills. Fits Bosch Dewalt Makita Milwaukee etc. Professional quality - suitable for tradesmen and DIYers, Manufacturer: Saxton Trading Ltd