38672 Micro Grain Solid Carbide Countersink, Uncoated (Bright) Finish, 6 Flute, 1/4" Shank Diameter, 5/16" Body Diameter, 100 Degrees Point Angle (Pack of 1)

Cobra Carbide micro grain solid carbide countersink eliminates chattering or tearing. Use in mild steel; not suitable for hardened steel. Chatterless countersinks have flutes designed for fast shearing cuts ideal for hardened steel and other tough alloys. For chamfering, countersinking, and deburring holes. Excellent working on aluminum alloy and cast iron materials. Good working on carbon steel, alloy steel, nickel/inconel alloy and stainless steel materials.

• Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems
• Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
• Round shanks allow use with a wide variety of toolholding systems
• Six flutes
• Eliminates chattering or tearing