0.3125" (5/16) Shank DIA x 60° per side - 6 FL - AlTiN Coated
0.3125" (5/16) Shank DIA x 60° per side Carbide Flat Quick Change - Countersink and Chamfer Tool, 6 Flutes, AlTiN Coated
Cutting Tools|Holemaking|Counter Bore and Counter Sink|Solid Counter Sinks