Made from precision drawn chrome vanadium tool steel. Extremely accurate machining makes for a perfect fit. Has security hole in the center. L-Torx has extra long reach that allows access to obscured bolts, and more torque. S-Torx is a short version that allows access to tight spaces. Bead blasted surface for better grip. Corrosion-resistant coating. Includes a durable holder. Comes with sizes T10, T15, T20, T25, T27, T40, T45 and T50