3/8" Aeropro Ratchet Wrench - AP17411-3/8 With superior technology and manufactured with precision and high quality to deliver more power and a longer life. Ball bearing mounted air motor produces enough power for most requirements. Fully hardened planetary gears reduce friction for extended tool productivity. Comfortable composite grip handle. Ball socket retainer provides fast and easy socket replacement. Heat treated components for increased durability. Lightweight aluminium body. Compact head design allows flexibility in tight area. Forward/reverse lever located behind the ratchet head for quick change of direction. Side exhaust. Recommended air pressure 90 psi.