Simplify fastening tasks with the Klein Tools set. It combines 6 hex driver sizes — from 1/4" to 9/16", 3 flip sockets, and a 1/4" bit holder for driving screws. It provides convenient replacement for common wrench sizes and quick attachment to an impact wrench. It offers convenient storage of flip sockets on the shaft in any order and orientation. Color coding simplifies size identification, increasing productivity and work speed. A powerful rare-earth magnet securely holds hex fasteners, allowing for one-handed tightening. It features a steel alloy construction with a manganese phosphate coating that withstands the toughest usage conditions.