For almost 40 years customers around the world have depended on A & M Instruments for high precision Diamond Cutting Tools, CNC Machining, and Swiss Screw Machining. A & M Instruments manufactures diamond rotary tools for endless industrial applications including glass and stone, wood, metal, and plastics. A & M Instruments Quality Diamond Tools fit rotary power tools such as air tools, drills, rotary tools, and routers including brand names such as Dremel®, Proxxon®, Foredom®, Black and Decker®, Rotozip® and others. x