Inch 10 Piece Long Arm Set Manufactured from fully hardened carbon steel in accordance with DIN 911 ensuring a quality ductile key with precision square cut ends and accurate AF dimensions to ensure full socket contact. Black finish. Contents: 1/16” x 3”, 5/64” x 3 3/16”, 3/32” x 3 1/2”, 1/8” x 3 3/4”, 5/32” x 4 1/8”, 3/16” x 4 1/2”, 7/32” x 4 7/8”, 1/4” x 5 5/16”, 5/16” x 6”, and 3/8” x 6 3/4”.