Manufactured from chrome vanadium steel. Set includes slotted 3, 4, 5, 6, 7mm, Phillips #0, #1, #2, #3, Pozi #0, #1, #2, #3, Star T10, T15, T20, T25, T30, T40, Hex 2, 3, 4, 5, 5.5, 6. With belt clip holder.