The Makita IMPACT XPS 305mm Bit Holder (E-19180) is expertly engineered to withstand the hardest hitting impact drivers (sold separately). The Magnetic Insert Bit Holder provides convenient pick-up and retention of fasteners. The Magnetic Bit Holder is engineered with an optimised torsion zone geometry that facilitates an ideal transfer of impact energy for improved performance, taking pressure off the bit tip for increased durability in high torque applications. The two-piece design is engineered to allow the torsion technology to fully activate. The E-19180 is composed of premium, high-grade steel that is masterfully engineered for extended life. It features a rare earth magnet that increases holding power compared to standard magnets. It features a heat-treating process precisely calibrated for added durability. There is a C-ring for added insert bit retention. It is expertly engineered to withstand the hardest-hitting impact drivers.