Martindale was founded in 1913 as a tool manufacturer for the electric motor maintenance and repair industry. Offering only the highest product quality, timely delivery, competitive pricing and customer awareness maintains our current leadership position. Our product line is divided into eight main areas: Diamond D Abrasives, Commutator Grinders, Commutator Undercutters, Rotary Burs, Circular Saws, Hand Tools, Electrical Test Equipment and Other Products.