10 x PZ2 - 50mm Pozi-drive 2 Impact Duty Magnetic Screwdriver Drill Bits Set. Looking for a high-quality set of impact driver bits that can handle any job? Look no further than our professional-grade impact driver bits, made of heat-treated S2 steel for maximum durability and long-lasting performance. Manufactured from the same factory as Milwaukee and Nikita Black phosphate coating that resists corrosion and wear, these Pozi 2 (PZ2) bits are built to last. At 50mm long and featuring a 1/4 inch universal fit, they're perfect for both tradespeople and DIYers alike. The precision crafted tips and torsion zone maximise torque transfer and minimise stripped heads.