– Covering the 8 most common torx sizes: E6/E8, E10/E12, E14/E18, and E20/E24. – Suitable for the installation and removal of exterior torx fasteners only. – Off-corner loading design at the end of the box provides a better grip and reduces fastener rounding. – Made of premium chrome vanadium steel that has been heat treated for maximum strength, offers you the lasting durability. – Legible stamped dimension marks at both ends of the wrench for easy identification. – Surface treated, anti-rust, easy to clean and corrosion resistant.