Relton Corporation began as the Concrete-Termite Drill Company in 1946. The company's first product was the multiple-carbide, core style, rotary masonry drill bit invented by our founder. This basic design quickly became the standard of the industry. Relton has since become the broadest-line supplier of hammer and rotary bits and hole saws- and we still sell the original product! In the late 1950's, Relton added two metal-cutting fluids, Rapid Tap® for hard metals and A-9® for aluminum.