Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 1/2" Shank Diameter, 1" Size, 82 Degrees Angle (Pack of 1)
Drill America DEWSFC Series High-Speed Steel Countersink, 1 Flute, 1/4" Shank Diameter, 5/16" Size, 82 Degrees Angle (Pack of 1)
Accusize Industrial Tools 1'' Diameter Rota Cutter Countersink, H.S.S. Countersink for Rota-Cutter, 3/4'' Weldon Shank, Ce00-0001
Amana Tool 55150 Carbide Tipped 82 Degree Countersink with Tapered Drill and Adjustable Depth Stop with No-Thrust BB, 3/8 D x 3/32 Drill D x 1/4 Inch Quick Release Hex SHK