4.00mm 3 Flute 12 LOC Primate TiALN Solid Carbide End Mill

SKU 422-0041

4.00mm 3 Flute 12 LOC Primate TiALN Solid Carbide End Mill

Availability In stock

Shipping Ups Ground

SKU 422-0041
Mfg SKU # 70040_CEM0400MMF3TiALN
end mill category Square End
Brand Gorilla Mill
Series Name Primate
cutting diameter 4.00mm
Shank Diameter 6
flute length 12
overall length 50
Number of Flutes 3
Material micrograin carbide
finish coating TiALN
helix angle 30
Flute Length Type Standard
Single or Double End single
To be used on alloy steel, aluminum, brass, bronze, carbon steel, copper, hardened steel, high temp alloy, stainless steel, titanium
center cutting Yes
end shape square end
Shank Type round shank
Full Details
  • Made in USAMade in USA

Product Spotlight

  • TIALN Coatings

    Extremely versatile in various materials, center, cutting, solid sub-micron carbide

  • Gorilla Mill 4 Flute in Action

    1.0" Diameter 0.750" Axial Engagement
    4140 PH 42.0" IPM
    Profiling 1910 RPM
    0.0250" Radial engagement  
  • TiALN

    Offers high resistance to heat and oxidation. This enables working with a higher cutting speed and thus accelerating working processes. Compared to uncoated tools, TiAlN coating, depending on the application, increase an up to ten times longer service life.

    Structure Nanohardness (GPa) Friction (fretting) Coefficient Thickness (um) Maximum Working Temp. Color
    Multilayer 28 0.6 2-4 700°C (1290°F) Violet


The tool edge preparation process adds strength to the tool cutting edge, lengthens usable tool life, minimizes the propensity of the edge to chip, improves part quality and consistency, and enhances work piece surface finish.

With GMP Edge Prep, we have taken edge preparation to the next level, making it a science. Now the technology and equipment exists to overcome nearly all the current processing problems and to produce a tool that will yield optimum performance in any given operation or application.


Before GMP Edge Prep After GMP Edge Prep

Machining Method

Profiling Full Slotting Pocketing High-Velocity


  • Quality Assureance

    Our primary responsibility is to ensure the accuracy and consistency of product being manufactured. We have an array of quality inspection equipment including three Eurotech PG1000’s with up to 145x magnification, a Leica M205 C computerized photo microscope with up to 500x magnification, a Zoller pomSkpGo for edge prep measurements at 100x magnification and two Zoller Genius3 machines which are CNC controlled programmable inspection machines with 50X magnification.

  • Regrinds

    The vast majority of your tooling that Gorilla Mill or anyone else manufactures can be re-sharpened and recoated to “like new” condition on one of our state-of-the-art CNC tool and cutter grinders at a fraction of a new tool’s cost. At Gorilla Mill, our goal is to show cost savings while maintaining a high accuracy rate. Whether it’s Gorilla Mills,® or other variable end mills, standard end mills, Gorilla Drills or any other high performance drills, Gorilla Mill has over 40 years of knowledge and experience to help your bottom line.