Supplied in a 3-way holder allen key T-Star tamperproof drive (for Torx) in following sizes: T10, length: 86 x 17 mm T15, length: 90 x 18 mm T20, length: 95 x 19 mm T25, length: 100 x 20 mm T30, length: 114 x 24 mm T40, length: 124 x 26 mm T45, length: 133 x 29 mm T50, length: 152 x 32 mm