Rushmore 3 Flute End Mill ZrN Coated For Aluminum, 5/16″ Size & Diameter

• Solid Carbide
• Cutting tool geometry to prevent most failures from aluminum sticking to the carbide cutting edge.
• Center Cutting.
• Cutting Direction: Right Hand
• Flute polish for better chip evacuation & higher metal removal rates.
• Edge prep for reduced chatter.
• Open gash end for better chip evacuation.
• Helix Angle: 37
• Higher helix for increased chip evacuation & better shearing.
• ZrN coating for increased tool life & lubricity.
• This produces an end mill that provides reduced cutting forces & superior finishes.
• Tolerance_Cutting Diameter: +.000″ / -.002″
• Tolerance_Shank Diameter: -.0001″ / -.0004″

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