Starrett tungsten carbide tipped fast cut multi purpose holesaws are the perfect tool for users from construction and installation engineers to the diy enthusiast offering very fast cutting times and outstanding lifethese mph saws will power through wood mdf plastics and ceramic wall tiles advantages carbide tipped teeth for outstanding cutting performance and product durability smooth cut with minimal heat build up cutting depth 54 mm 2 18in allowing use for cutting through strapping and joists