5/16-Inch Diameter Tungsten Carbide Cutter
5/16" Diameter Structured Tooth Tungsten Carbide Cutter, 1/8" Shank, Fast Cutting Needle Sharp Teeth For Greater Material Removal, Minimum Loading, Use On Fiberglass, Wood, Plastic, Epoxy & Rubber, Do Not Run In Excess Of 35,000 RPM.