3/8 3 Flute 82 Degree Lemur Zirconium Nitride Helical Flute Solid Carbide Chamfer Mill

SKU 422-5524

3/8 3 Flute 82 Degree Lemur Zirconium Nitride Helical Flute Solid Carbide Chamfer Mill

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SKU 422-5524
end mill category Chamfer Mill
Brand Gorilla Mill
Mfg SKU # 90218 CMHP38C3082Z
Series Name Lemur
cutting diameter 3/8
Shank Diameter 3/8
flute length 0.175
overall length 2-1/2
Number of Flutes 3
Material micrograin carbide
finish coating Zirconium Nitride
Flute Length Type Helical Multi Flute
Single or Double End single
To be used on alloy steel, aluminum, brass, bronze, carbon steel, cast iron, exotic material, hardened steel, high temp alloy, high temp nickel base alloy, inconel, stainless steel, titanium
Tip Diameter 0.07
point angle 82
end shape point
Distance to Theoretical Point 0.04
Shank Type round shank
Full Details
  • Made in USAMade in USA

Product Spotlight

  • Chamfer Mills | ZRN Coatings

    Designed for improved finish and increased tool life, the Lemur general purpose chamfer cutters are a cost effective choice for countersinking and chimpfering. Available with 2 or 4 straight flutes, un-coated or GMX-35 coated, the Lemur general purpose chamfer line provides high quality results in standard chimpfering operations.

  • 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  
  • ZRN

    Makes surfaces smoother, harder, and adds lubricity consequently increases tool performance and decreases friction

    Structure Nanohardness (GPa) Friction (fretting) Coefficient Thickness (um) Maximum Working Temp. Color
    Monolayer 28 0.4 2-4 550°C (1020°F) pale Y


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

Chamfering Plunging


  • 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.