Titan Tamper Resistant SAE Hex Bit Socket Set - 13 Piece features a 13 piece tamper resistant hex bit set with S2 alloy steel bits for strength and durability. It is for use with pin type tamper resistant hex fasteners. It has 1/4 inch and 3/8 inch drive bit holders. It has 11 bits, 1/16, 3/32, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 and 7/16 inches. It has a handy magnetic holder that sticks to most metal surfaces.