Handle resists slippage. Handle resists oil, gas, and water. Heat-treated and tempered shank. Cushion-Grip handle for greater torque and comfort. Premium chrome-plated for smooth feel and corrosion resistance. Internal flanges inside handle provide solid, twist-resistant blade anchor. Special heat-treated shafts. Precision-machined tip for exact fit. Meets or exceeds applicable ASME / ANSI specifications. Patented Tip-Ident quickly identifies the screwdriver type and tip orientation