1.Hole Saw cutter 2.Drilling holes in porcelain,marble,granite,tile or other nature stone tiles. 3.efficient results 4.top Hole Saw cutterUsed ... , metal plate, timber, ect.1.Hole Saw cutter2.Drilling holes in porcelain,marble,granite,tile or other nature stone tiles.3.efficient ... , Bofeng tools have reached all over the world. carbide hole saw cutter set