Rushmore Uncoated 4 Flute H.S.S. 9/16″ Size Finishing End Mill, 5/8″ Shank Diameter

• H.S.S. – High Speed Steel
• Hardness:58 to 60 RC
• General purpose tools designed for general milling operations for slots, grooves and other similar features.
• Designed for use in machine tools.
• Sized to offer good rigidity.
• 4 Flutes.
• Spiral flute design offers a faster and smoother cutting action.
• Double End.
• Right Hand.
• Helix Angle: 30
• Permit center cutting.
• Workpiece Material Range: Steel, Cast Iron, Plastics

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