Faster setup and additional locking force compared to other locking tools. Screwdriver through-hole provides you with leverage for tightening the thumb screw. Curved jaw maximizes pressure points for any bolt, nut or locking tool application. One-handed control release is efficient and easy. Hardened jaws with better grip force on jobsite material. Forged alloy steel for maximum tool strength and durability. Rust protection increases tool life by reducing corrosion. Ergonomic handles with anti-pinch design. Limited Lifetime Warranty