Precise Economy 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
• For general milling operations for slots, grooves and other similar features.
• For pocketing, die sinking, tracer controlled and cavity milling operations.
• For general purpose milling for ferrous & non-ferrous materials.
• Has weldon shank.
• Ground with relief angle.
• Manufactured according to ANSI/ASME B 94.19-1985.
• Helix Angle: 30
• Center Cutting: Yes
• Flute Shape: Spiral Flute
• Shank Style: Weldon Shank
• Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics