Up to 15x more robust than a Bosch 2608522316 Standard Holder Need a reliable bit holder to drive screws more efficiently? The robust PRO Impact is equipped with a permanent magnet and quick release mechanism to help you complete your tasks with ease. The PRO Impact is a great choice for installers who need a robust and hardwearing bit holder to help them with more demanding screwdriving applications. Its permanent magnet locks bits securely while the quick release mechanism fastens them in place, ensuring even stronger hold. 1/4" Impact rated Hex shank for use in impact driver and drill driver Tested in Bosch labs according to Bosch standard procedures. Features and Benefits: • Up to 15x more robust than a Bosch 2608522316 Standard Holder • 1/4" Impact rated Hex shank for use in impact driver and drill driver • For driving screws efficiently with Quick Change release mechanism, eg when installing all types of panels, equipment, and fixtures • Highly efficient for installers, electricians, metalworkers, and woodworkers: Robust Specifications: Drive end Inch: 1/4 Total length mm: 60 Shank: 1/4" external hexagon