25 piece 25mm PZ2 SabreCut Impact Driver Bits and Bit Holder with Storage Box. SabreCut Extreme professional quality PoziDriv (PZ2) screwdriver bits specially designed for use with impact drivers, bits have forged tips for greater impact resistance and a longer lifetime. Tough heat-treated impact torsion screwdriver bits that provide improved durability and reduced breakage. Ideal for continuous high torque use withstanding changes of load due to elasticity. Professional quality impact driver bits supplied with storage box.