Amartisan Torx Bit Set 24-Piece S2 Steel 1" & 2.3" Long T5 - T40 Security Tam...
Amartisan Torx Bit Set, 24-Piece S2 Steel, 1" & 2.3" Long T5 - T40, Security, Tamper Resistant Fastener Drive Bit. S2 Material Forging：The drill bit is made of high quality S2 alloy steel ,with sturdy hardened & tempered construction.