6 piece Rennie Tool Company impact driver bits set. This impact screwdriver set includes 1 x 60mm long impact bit holder, 1 x 152mm long impact bit holder and 2 x 100mm long PZ2 impact driver bit (pozidrive no.2) and 2 x 150mm extra long PZ2 magnetic Impact driver bits. Manufactured using high quality S2 steel and using the latest manufacturing technologies. All 6 items in this impact bit set have a 6.35mm (1/4") hex shank which is suitable for use with your pneumatic screwdriver, electric screwdriver, impact drill, multi bit screwdriver or any other electric drill which takes a 1/4 inch hex shank. The PZ2 impact bit (pozi 2 impact driver bit) and the 2 impact bit holders are heat-treated for an extended life and for reduced breakage. These screwdriver bits are compatible with Dewalt Hitachi Mac Allister Einhell Erbauer Milwaukee Bosch Makita Drills and many more. These impact bits are a great addition to any tool set Trade quality screwdriver bits designed for use with impact drivers and can also be used for standard non impact use. These impact screwdriver bits have a forged tip for increased impact resistance and a extended life.