The Makita Impact Gold Insert Bits and Double-Ended Power Bits are designed for use with high-torque impact drivers. The Xtreme Torsion Technology helps the bits withstand high-torque fastening applications, and the five-step manufacturing process delivers superior fitment, according to the company. Power bits allow the user to insert the bit directly into the impact driver without the need for an insert bit holder. Impact Gold Double-Ended Power Bits give the user the added benefit of having two tips on one bit. These bits are made of high-quality steel.