Size: 13/16" - 1-1/16"5-Step Reamer (13/16", 7/8", 15/16", 1" & 1-1/16")Enlarge, Align And Drill Holes In Steel, Stainless Steel And Tough Alloys90 Degree Drill Point1/2" Flatted ShankFor Use In Portable Power Drills Or In A Drill PressCut Burr Free Holes In Material Up To 1/2" ThickSharp 2-Flute Design For Fast, Stable Cutting