Harvey Tool 23380-C3 | 0.0800" Cutter DIA x 0.3120" (5/16) Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated. From the Harvey Tool Counterbores - Flat Bottom product family.
Warning: This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov

Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov
Brand:
Harvey Tool
Cutter Diameter (Decimal Inch):
0.0800"
Flute Length (Inch):
5/16"
Flute Length (Decimal Inch):
0.3120"
Overall Length (Inch):
1-1/2"
Overall Length (Decimal Inch):
1.5000"
Number of Flutes:
4
Shank Diameter (Inch):
1/8"
Shank Diameter (Decimal Inch):
0.1250"
Shank Diameter (mm):
3.18mm
Finish/Coating:
C3