Malco

Malco Products, SBC, got its start in 1950 when Mark W. Keymer, a young steel supply salesman, decided to manufacture and market a pipe crimper he had invented for installing the "new" sheet metal ductwork used in forced air heating systems. More tools soon followed, including the first hand seamer to employ compound leverage, a time-saving hand notcher that made a V-shaped cut in one motion, and a hand-operated, snap lock punch to complete the basic sheet metal tool set. Now metal duct fabrication could easily be done at the job site and the tools were well received by contractor-installers.