US PRO INDUSTRIAL 7pc 1/2" DRIVE 6pt Swivel Impact Shallow Sockets 13mm - 21mm
Sizes: 13, 14, 15, 17, 18, 19 and 21mm. Made from strong chromium-molybdenum (Cr-Mo) steel with a phosphate finish to protect from rust and corrosion. The spring-loaded ball-and-pin swivel design provides a more secure 360° action.