#5 Spline Drive Impact Extension

Genius Tools Impact Extension Bar #5 Spline Drive 3/8 Inch Heavy-Duty Chrome Molybdenum Steel High Torque Performance - 540380 Impact Extension Bar This #5 spline drive impact extension bar is built for professional hand tool setups where added reach and controlled torque transfer matter. With a 380mm (14.96 inch) overall length, it helps bridge access gaps while keeping tool handling predictable. Made from Chromium Molybdenum Alloy Steel, it's designed for strength, durability, and anti-corrosive performance. The bar is heat treated through oil quenching and finished with a matte black oxide coating to support long-term, heavy-duty impact use. Key Benefits #5 spline drive impact extension bar supports high-torque impact tool applications. 380mm (14.96 inch) overall length improves access in deeper or recessed fasteners. Chromium Molybdenum Alloy Steel construction delivers high strength and durability. Anti-corrosive material properties help resist wear in demanding shop environments. Oil-quenched heat treatment enhances core strength for long-lasting professional service. Matte black oxide coating contributes to a tough exterior suited for impact work. Permanently stamped size markings simplify identification and tool organization. SKU: 540380. Designed for professional technicians, it prioritizes clear identification, durable materials, and a finish intended for repeated, heavy-use impact conditions.