Material: Chrome-molybdenum steel (Cr-Mo) for high durability.
Drive Size: 1/2 inch.
Socket Sizes Included: 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm, 21mm, 22mm, and 24mm.
Features: Heat-treated with a black oxide coating, supplied on a plastic storage hanger.