Getting work done just got a whole lot quicker thanks to the Century Drill & Tool Square Screwdriver Bits! Century's patented heat-treatment process provides maximum shock absorption and durability, so the square screwdriver bits can take whatever you throw at them. Precision-ground tips allow for maximum contact and secure grip while in use. The screwdriver bits are made from premium-grade steel to ensure optimal performance and a long operational lifespan. Screwdriver bits made from premium-grade steel to ensure optimal performance in all applications Century's patented heat-treatment process provides maximum shock absorption associated with impact-ready power tools Precision-ground tips for maximum contact and secure grip For use in standard and cordless impact drivers 1-in. overall length 2 square bits included