Malco Products, SBC, got its start in 1950 when Mark W.
Keymer, young steel salesman, decided to manufacture and market 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, time-saving hand notcher that made V-shaped cut in one motion, and hand-operated, snap lock punch to complete the sheet tool set.
Now metal duct fabrication could be done at the job site and the tools were well received by contractor-installers..
Keymer's manufacturing operations soon had to move from garage to the more basement of his Minneapolis home.
He relates that the origin of Malco name came from combining his first name and the first name of early associate named Al Malco for.
Mark and Al's Company ... Read more