The Facom 6-Point Stubby Impact Sockets are made from Chrome Molybdenum steel, tempered via a heat treatment for increased durability. Coated with manganese phosphate for higher protection and corrosion resistance. Its cross hole design prevents unintentional separation of adapter and socket. The stubby design gives greater accessibility in tight or hard to reach applications due to 25% shorter length. This 12 Piece Set is supplied in a compact, durable case. Contains the following: Sizes: 10, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24 & 27mm.