Tungsten Carbide Tipped- Cuts 5 times faster than conventional bi-metal holesaws in timberDeep cut-outs for swift and easy core ejectionInternational Thread Pattern Accepts all standard arborsTungsten Carbide Tipped, cuts 5 times faster than conventional Bi-Metal holesaws in timber. Suited to cut timber, hardwood, softwood, MDF, plasterboard, compressed fibre cement sheet, cement sheet, plastics, ceramic tiles and abrasive materials.