Milwaukee SHOCKWAVE Impact Duty 1/4" Hex Drive Drill Bits are engineered for extreme durability and up to 10x life. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE Impact Duty Hex Drive Drill Bits feature the Milwaukee Thunderbolt web for durability and chip removal paired with taper-fit construction for a stronger bit with less wobble. The bits include a 135 deg split point to allow the bit to start on contact and eliminates walking. Broadly targeting cordless users, the SHOCKWAVE 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.