Sonic Torx drivers include a tri-lobe design that fits comfortably in your hand. A poly-carbonate body is partially-wrapped in a rubber over-mold for grip and additional comfort. A Chrome Vanadium shaft provides strength, durability, and a of resistance to rust and corrosion. The hardened magnetic tip provides excellent grip while mitigating the loss of fasteners. Sonic Torx drivers are covered by a Warranty.