Features: Striking impact to drive spring-loaded handle to remove rounded and frozen screws Designed to drive 12 degree rotation with each impact High performance steel end cap designed for repetitive striking impacts Ergonomic tri-lobe dual material handle provides the optimal balance of strength and efficiency “Speed Zone” handle design for faster rotation in low-torque applications Non-slip black oxide tip for more secure fit in fastener Blades laser etched with part number and size for quick identification Oil and solvent resistant handle provides a longer tool life Meets or exceeds ASME standards for performance and quality Details: Bolt Biter™ impact screwdrivers offer the convenience of a standard screwdriver with the extraction abilities of a dedicated impact driver, loosing rusted, stripped, or other difficult-to-remove screws. Their high-performance steel handle end cap transfers impact shock to an internal mechanism that rotates the heat-treated alloy steel shaft 12 degrees when struck. High-strength tips are rust-resistant nickel chrome plated.