Makita is the leading manufacturer of professional power tools on the market. Introducing Makita Impact Black Bits; manufactured from S2 steel to provide exceptional durability and strength, with precision machined tips for better fit to make full contact with the screw head for a maximum power transfer, the Impact Black bits are 20 per cent more durable than that of a standard screw bit, for a longer service life. The Impact Black Bits are manufactured using a special hardening procedure; coated in manganese phosphate for wear resistance and to prevent rusting and corrosion for a longer service life. Impact Black bits absorb hard impacts when screwing screws or when placing the screw head on the surface and the torsion zone counteracts high torque peaks. A screw guide (available separately) helps to keep the screw perfectly positioned as they are driven into the material, ideal for fitting hinges. Impact Black bits are suitable for a wide variety of screwdriving applications including screw driving, cabinet making, joinery, assembly, fixings and more. The E-12011 is a 10 piece set containing 50mm Philips Bits PH1, PH2, PH3, Pozidrive Bits PZ1, PZ2, PZ3 and Torx Bits T15, T20, T25, T30, supplied in a durable plastic holder.