Tekton Torx Hard Handle Black Oxide Screwdriver tips are made to Torx dimensional standards and torque specifications for optimal performance in Torx and star fasteners. The handle is refined from a classic square profile and has comfortable contours along the sides that create natural positions for your fingers. Made of durable glass-reinforced nylon, the handle is resistant to extreme temperatures, high impacts, chips, cracks, scratches, fuels, grease, and solvents. We use a molding process that forms the handle around the blade, rather than forcing the blade into a premade handle; the result is a straighter blade that can't twist out. This set includes a portable low-profile screwdriver holder with a foldable carrying handle and flexible teeth that hold the screwdrivers in place.