1. Wholly drop forged by tempered and hardened Carbon steel for strength exceeding international specifications. 2. Strong torque exceed ANSI standard for heavy duty work. 3. Finely polished chrome plated and mirror finish will protect against dirt and corrosion for years to come. 4. Non-toxic, Environmental and ANTI-SLIP rubble handle of Ergonomic design and elegant appearance. 5. Bidirectional. 6. Available size:1/4"3/8" & 1/2”