12 Pcs, Torx Drill Shank Screwdriver Bits, 50mm Security Torx T5-T40

Torx security professional screwdriver hex shank drill bits made of S2 high quality steel. The 12 different sizes available are; T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 and are 50mm long. These tamper proof Torx screwdriver bits are strongly magnetic can be firmly fixed on screwdrivers The bits can be used with any 1/4" hex shank electric screwdriver, manual screwdriver, electric drills, etc.