Vermont American 18303 Carbon Steel Large Diameter Hole Saw Mandrel with 1/4-Inch Pilot Drill Bit This item is Vermont American 18303 Carbon Steel Large Diameter Hole Saw Mandrel with 1/4-Inch Pilot Drill Bit Used for Power Tool Accessories, Drill Bits & Accessories The produt is manufactured in United States For cutting woods, plastics and composite materials Designed to fit any brand Equipped with a 1/4-Inch high speed steel pilot drill