Stainless steel, mild steel, aluminum, copper, brass, fiberglass and plastics
Use With Greenlee Bimetal Hole Saws, Recessed Light Hole Saws And Carbide-grit Hole Saws (Carbide-Tipped Pilot Drill Sold Separately), Can Be Used With Greenlee NO 901 Or 904 Bit Extensions, 9/16 IN - 1-3/16 IN (14.300 - 30.200 MM) Hole Saws