About DMG Tool Company

The DMG Tool Company started in late 2022 when Dave Clifford, a backflow tester, and Mark Mitchell, an engineer created the first prototype of the CheckMate. The CheckMate allows backflow testing and repair technicians to change check valve seats easier, faster, and smarter than doing it by hand.

Happily based out of Tucson, Arizona, DMG Tool Company has many more tools and ideas in the works!