MagicSpring Screw Holding TORX Driver.Screw Holding TORX T30 x 115mm.A Wiha Patented Innovation. Stainless Steel Rotary Spring Holds Screws Securely.Doesn't weaken tool or interfere with use.Stainless Laser welded spring & guard.Hardened tool steel blades.Exact fit precision machined Torx Tips.Guaranteed Quality Made in Germany.