SHOCKWAVE, 2 Pack, 2″ Slotted #8/#10 Power Bit. It is made of durable steel and has a 1/4″ hex shank. It is designed for use with impact drivers and is ideal for drilling holes in wood, metal, and plastic. Made from proprietary steel and heat-treated to control hardness, the SHOCKWAVEโข Impact Duty driver bits feature an innovatively designed geometric shock absorption zone to extend life. The forged tip allows for a secure grip and maximum contact eliminating stripping or slipping. Broadly targeting cordless users, the SHOCKWAVEโข Impact Duty accessory line is not only ideal for heavy-duty impact applications, but delivers a full system solution for all the user’s drilling and fastening needs.