... Saws ideal for cutting ceramics, fiberglass, hardwood, cast iron, composite CARBIDE GRIT HOLE SAWSThe long-lasting choice for cutting holes in ... , or so thin they would strip bi-metal or chip carbide teeth.Ideal for cutting ceramics, fiberglass, hardwoods, cast iron, composites, ... to heat, wear and abrasion with shock resistant back.Tungsten carbide grains are bonded to alloy backs with a gulleted, ...