This screwdriver bits set includes 5 PZ2 impact bits that are an overall length of 75mm. They are supplied in a plastic storage case. These pz2 impact driver bits are manufactured using high quality S2 steel and using the latest manufacturing technologies. 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 These pozi 2 impact driver bits are heat-treated and then finished in a black oxide coating for an extended life and for reduced breakage. These can be used with any impact driver bit holder or any standard drill chuck due to the universal 1/4" hex shank fitting Great for high torque continuous use. PZ2 screwdriver bits will give a perfect fit in any PZ2 screws. This impact driver bits set is a great addition to any tool set These long screwdriver bits are compatible with Dewalt Hitachi Mac Allister Einhell Erbauer Milwaukee Bosch Makita Drills and many more PZ2 magnetic impact bits, the magnetic tip helps with holding and starting the screw