Milwaukee® Shockwave™ Impact Duty Impact Duty™ Impact Duty driver bits are engineered to be the most durable, best fitting driver bits on the market. The optimized Shockzone™ Impact Duty geometry is unique for each tip type to provide up to 30x longer life and absorbs 3x more torque vs. other impact bits. The Precise Fit Custom Machined Tip™ Impact Duty prevents stripping and reduces wobble while the Custom Alloy76™ Impact Duty Steel and proprietary heat treat process maximizes resistance to wear and shock. Shockwave™ Impact Duty driver bits are built to deliver extreme durability for the most demanding applications.