General Tools 55 Heavy Duty Circle Cutter and is safe for use

and is safe for use on glass

soft steel

It removes tarnish quickly

steel casting and pressure pipe

hardware stores

General Tools 55 Heavy Duty Circle Cutter and is safe for useThe General Tools Heavy Duty Circle Cutter can produce precise circles in sheet metal, brass, copper, soft steel, aluminum, plastic, wood and composition materials. Durable body of heat treated tool steel. Adjustable to various diameters by included hex wrench. Only safe to use with drill press running at less than 500 rpm. Included blade (#55 Blade) and 1 4 in. pilot drill bit (#5 6 55 Drill) are replaceable. Diameter range: 1 3 4 to 7 7 8 in. Shank