Profile: Drill Masters Eldorado Tool is a supplier and manufacturer of deep hole drilling tools, fixtures and accessories. We are accredited with ISO 9001:2000 certification. Our manufacturing process utilized in all metal cutting industries including automotive, aircraft, aerospace, construction, medical, tool and die, petro chemical and hydraulics. Our products include single flute gundrills, stock drills, solid carbide gundrills, step drills, reamers, tool grinders and rifle buttons.