MELIN  HS4DP-3/4-82   3/4" Diameter X 82° Single End Drill Point 4 Flute Black Oxide HSS Countersink 1/2"Shank,2-3/4"Oal,4 Flute Single End 4 Flute HSS Drill Point Countersink, Spot Drill/Countersink  Made In USA