Makita is the leading manufacturer of professional power tools on the market. Introducing Makita Impact Black Torsion 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 coated in manganese phosphate for wear resistance and to prevent rusting and corrosion for longer 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 helps to keep the screw perfectly positioned as they are driven into the material, ideal for fitting hinges. Impact Black Bits are suitable for various applications including screw driving, cabinet making, joinery, assembly, fixings and more. The B-66880 35 Piece Impact Black Set bits are magnetic to ensure an optimal hold in the screw head, featuring an advanced torsion zone for the effective transfer of power and reduced cam out or breakage of the bit.