Both pieces have a corrosion-resistant manganese phosphate coating. Tekton Universal Joint 6-Point Impact Sockets have a compact design for tight spaces. 3/8 Inch Drive x 20 mm 6-Point Universal Joint Impact Socket The socket base is made from 4140 chromium-molybdenum steel, and the ball/socket piece is made from 8660 nickel-chromium-molybdenum steel.
Made in USA.) The rack is molded from high-quality polypropylene material that is durable and easy to clean. Each slot in the rack has a molded size marking for clear identification.