The Milwaukee Shockwave Knuckle Pivoting Bit Holder allows you to drive fasteners and drill holes in tight, difficult work areas. The innovative, compact design locks at a 0-degree or 30-degree angle and are designed for use with Milwaukee Shockwave Impact Duty 1/4 in. hex accessories. Milwaukee 30-degree knuckle set is rated to handle up to 2,000/lbs of torque in impact drivers. The Milwaukee magnetic bit holder is made from a proprietary steel, heat treated to control hardness. The Shockwave Impact Duty insert bits feature an innovatively designed geometric shock absorption zone to extend life.