12"(300mm)Extra Long torx Screwdrivers These have both hardened and tempered carbon steel blades These have magnetized tips for one handed operation. The ergonomically designed grips are cushioned and double injected for comfortable use. The shafts are 12"(300MM) in length. Industrial level Cr-v steel material with heat treatment, superior hardness and great durability and resistance for long life performance. Star Magnetic Screwdriver The Set Includes T15, T20.