4 x Stanley T10 T15 T20 T25 With Hole Tamper Proof Torx 1/4" Security Drill Bits
The main display picture shows 1 of each T10, T15, T20 & T25. Tamperproof Torx T15. Tamperproof Torx T25. The difference between these Torx bits and normal Torx bits is that. Tamperproof Torx T15 = 3.3mm.