The MILWAUKEE? SHOCKWAVE Impact Duty? 3/8 in. Drive Socket Universal Joint features a 15-degree swivel for access in hard to reach places and impact durability in high torque applications. The laser-etched size markings allow for easy identification of drive sizes. The dual-hole design and ring groove allow for easy Universal Joint attachment and removal. All SHOCKWAVE Impact Duty? Socket Universal Joints meet ASME industry standards.