Bosch Impact Tough Titanium Drill Bits provide 2X life over standard impact drill bits. Designed for use in the higher torque impact drill/drivers， they have an upgraded tip design for no-skate starts and a titanium cooling shield thanks to the titanium nitrate coating. The coating provides less friction and thus less generated heat. The bits have impact-rated shanks. Electricians， plumbers and HVAC pros will appreciate the tough construction of the bit， rated for heavy-gauge carbon steels， as well as light gauge metal and hardwood applications.