78 110 Deg, 6Flute HSS Countersink
Head Diameter Inch 78 Number of Flutes 6 Included Angle 110 Countersink Material High Speed Steel Countersink FinishCoating Black Oxide Shank Diameter Inch 12 Flutes are staggered to ensure smoother, chatterfree cutting action Steam black oxide surface treatment enhances tool life and prevents galling 100 CNC manufactured to tighter than industry standard tolerances.