Bosch Impact Tough 1/4" x 2-9/16" Magnetic Nutsetter is a professional-grade tool that offers 10X life over standard impact bits. It features an X-Tended Torsion Zone that helps to absorb the high torque of new impact drivers, and an advanced design that provides a secure fit. The heat-treated manufacturing process provides increased durability, while the high-visibility sleeve with laser-etched markings provides user convenience.