Milwaukee 7 Piece Shockwave Torx Insert Bit Set provides a durable and reliable set of assorted Torx bits that will withstand years of use and punishment with their geometric design and specially heat treated construction. What's Included: (1) TORX® Bit 1 in. x T40, (1) TORX® Bit 1 in. x T30, (1) TORX® Bit 1 in. x T27, (1) TORX® Bit 1 in. x T25, (1) TORX® Bit 1 in. x T20, (1) TORX® Bit 1 in. x T15, (1) TORX® Bit 1 in. x T10Optimized Shock zone absorbs peak torque and prevents breakingPrecise fit Custom Machined Tip prevents stripping and reduces wobbleCustom Alloy 76 steel maximizes resistance to wear and shockGeometric design provides the shock absorption zone1 in. lengthTORX bit type