Harvey Tool 23420-C8 | 0.3125" (5/16) Diameter x 0.3125" (5/16) Shank x 2.5000" (2-1/2) OAL 4 Flutes TiB2 Coated Carbide Flat Bottom Counterbore

This Harvey Tool product line of Counterbores - Flat Bottom - Long Reach features tooling that can be used for flat bottom reaming or straightening misaligned holes.

• Flat Bottom (No Dish) design allows spot facing or counterboring on irregular surfaces
• Can be used for flat bottom reaming or straightening misaligned holes
• Ground with full cylidrical margin (not side cutting)
• Undersized neck to avoid heeling
• CNC ground in the USA
• Center cutting
• Solid carbide
• 15° Helix
• 4 Flutes