Rushmore 4 Flute H.S.S. Single End Mill, 5/16″ Size, 3/8″ Shank Diameter, 3/4″ Length of Cut, 2-1/2″ Overall Length

• H.S.S. – High Speed Steel
• Hardness: 58 to 60 RC
• Single end mills are general purpose tools designed for general milling operations for slots, grooves and other similar features.
• The spiral flute design permits a faster and smoother cutting action and the end mills are sized to provide a good cutting range while affording adequate rigidity.
• For optimal performance and the best tool life the correct cutting speeds and feeds must be used and suitable lubricating/cutting oils or appropriate coolant fluids are recommended.
• Non-Center Cutting
• Used where plunge cutting is not necessary.
  Peripheral teeth allow for side cutting or contouring an exterior surface.
• Finish Coating: Bright
• Cutting Direction: Right Hand
• Helix Angle: 30
• Shank Style: Straight Shank
• Tolerance_Cutting Diameter: +0.0015 to -0.0000″
• Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics
• Country of Origin: U.S.A.