Manufactured from hardened and heat treated Chrome Vanadium steel with a fully polished finish. Keys range in length from 65 to 175mm. Contents: 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8". Colour-coded anti-slip coating for comfort, control and fast identification. Supplied in easy-access case for safe storage and quick key selection.