The Milwaukee® SHOCKWAVE Impact Duty™ 30° Knuckle™ Pivoting Bit Holders innovative, compact design locks at a 0° or 30° angle and is designed for use with SHOCKWAVE Impact Duty™ ¼” hex accessories. It is rated to handle up to 2,000 in-lbs of torque in impact drivers while the 30° Knuckle™ is engineered with Milwaukee® SHOCKWAVE Impact Duty™ technology and is built for durability. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE Impact Duty™ insert bits feature an innovatively designed geometric shock absorption zone to extend life. 10 SHOCKWAVE Impact Duty™ insert bits are included. Now use with Milwaukee® SHOCKWAVE Impact Duty™ Insert Magnetic Nut Drivers (1/4", 5/16", 3/8", 7/16", 1/2").