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Cleveland

Cleveland C80021 4-Flute Carbide HP VI Square End Mill

SKU CH-N7KJ-4HQGW

A four-flute carbide square end mill with TiAlN coating, 0.3125 in diameter, 0.5 in length of cut and 5/16 in shank for general milling

  • TypeMilling
  • 4-flute carbide design enables efficient material removal in milling operations
  • TiAlN coating increases wear resistance for extended tool life
  • 3125 in diameter suits precision machining tasks
  • 5 in length of cut allows shallow profiling passes
  • 5/16 in shank diameter fits standard tool holders

Precision Milling Tool

The Cleveland C80021 is a 4-flute carbide square end mill built for high-performance milling in a range of materials. Its TiAlN coating adds wear resistance and allows higher cutting speeds.

Machinists and Fabricators

This cutter suits professionals running CNC or manual milling machines who need a rigid 5/16 inch shank tool for profiling and slotting. Shops requiring coolant-through capability or a different shank diameter should select another model.

0.3125 Inch Cutting Diameter

The 0.3125 inch milling diameter determines the feature size this tool can produce. Verify that this exact dimension matches the slot width or profile radius required by your part drawing before ordering.

Highlights

  • 4-flute carbide design enables efficient material removal in milling operations
  • TiAlN coating increases wear resistance for extended tool life
  • 3125 in diameter suits precision machining tasks
  • 5 in length of cut allows shallow profiling passes
  • 5/16 in shank diameter fits standard tool holders

Specifications

BrandCLEVELAND
TypeMilling

Questions about this item

How deep can the 0.5 in length of cut go before the carbide flutes lose rigidity?

The 0.5 in length of cut defines the maximum axial engagement; deeper passes increase deflection and reduce tool life in carbide.

Does the TiAlN coating keep the 0.3125 in cutter cool enough for continuous dry machining?

TiAlN forms a hard, heat-resistant layer that allows sustained dry cutting by reducing friction and delaying thermal softening of the carbide substrate.

Will a standard 5/16 in collet or end-mill holder accept the shank without an adapter?

Yes, the 5/16 in shank diameter matches common ER collets, Weldon flats and shrink-fit holders used on CNC mills and routers.

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