Milwaukee Electric Tools 495-48-32-4484 Shockwave T20 Torx 2 in. Power Bit Bits feature an innovatively designed geometric shock absorption zone to extend life Driver bits are engineered for extreme durability and up to 10x life The forged tip allows for a secure grip and maximum contact eliminating stripping or slipping Drive size: 1/4-inch (TORX) Length: 2-inches