These sockets are constructed out of chrome vanadium steel for durability and are designed to handle most jobs. The deep wall lets you reach fasteners on long studs. The socket set is brightly color coded for specific measurements to easily change in and out while on the job. +++++ Colored for quick identification ~~ 10 Piece 3/8" drive SAE color coded deep well socket set (6 point) ~~ Made of chrome vanadium steel ~~ Sizes 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", & 7/8" ~~ Complete with socket holder. Note: To see other discounted products +++ Search on Amazon: ABC Products can crusher