Cleveland C31964 PM-4-TN 1/4" center cutting single end square end mill with 4-flute spiral design, 37° helix angle, and TiN (Titanium Nitride) coating. PM HSS-E (Powder Metal High-Speed Steel) construction with 5/8" length of cut, 2-7/16" overall length, and 3/8" straight/Weldon flat shank. Right hand cutting direction for general-purpose milling applications.

Cleveland

PM-Plus

High Performance End Mill

• Center Cutting Single End Square End
• Series: PM-4
• 1/4 in Diameter Cutter
• 2-7/16 in Overall Length
• 5/8 in Length of Cut
• 4 Flutes
• Spiral Flute
• 3/8 in Shank Diameter
• Right Hand Cutting Direction
• 37 deg Helix Angle
• Straight/Weldon Flat Shank
• PM HSS-E
• TiN Coated
• Characteristics and Features
• • PM Plus; high performance end mills deliver superior performance
  • 8% Cobalt substrate
  • High vanadium for high red hardness means exceptional toughness and high shock resistance
  • Run at higher feeds than conventional HSS or cobalt end mills
  • Provide excellent heat and wear resistance
  • Freer cutting minimizes heat build-up
  • Give excellent finish
  • Multi-flute end mills deliver a smoother finish and are better for peripheral cuts
  • Multi-flute end mills have a heavy duty cross section for better rigidity
  • Increased number of flutes mean more cutting edges, providing more cutting action
  • Coatings reduce heat and abrasion to increase tool life
  • The increased lubricity of the coating surface reduces material adhesion and built-up edge, enabling even higher feed rates
  • Coatings reduce the amount of torque required for machining to allow more efficient use of equipment
  • Increase machining speeds to achieve optimum performance when using

    Cleveland

    coatings
  • TiN (titanium nitride) coating in gold color intended for aggressive machining
  • TiN coating increase machining speed 25 to 30% versus bright speeds
  • Applicable on alloy steel, stainless steel, titanium alloys and aluminum