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1/4-28 0.181 Dia 2xD Helical Multi Flute Solid Carbide Thread Mill

SKU
422-4928
$84.90
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More Information
Mfg SKU #90056_GMTM14-28UN3FL
end mill categoryThread Mill
BrandGorilla Mill
Series NameMissing Link
cutting diameter0.181
Shank Diameter3/16
Overall Length2-1/2
Number of Flutes3
Materialmicrograin carbide
finish coatingGMX-35
helix anglevariable helix
Flute Length TypeHelical Multi Flute
Single or Double Endsingle
To be used onAlloy Steel, Carbon Steel, Cast Iron, Exotic Material, Hardened Steel, High Temp Alloy, High Temp Nickel Base Alloy, Inconel, Stainless Steel, Titanium
minor diameter0.217
center cuttingYes
end shapeSquare End
thread length0.5
thread size1/4-28
Thread Pitch28
thread standardUNF
Shank Typeround shank
Coolant ThroughNo

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Made in USAMade in USA

Spotlight

  • Variable Flute and Index | GMX-35 Coatings

    he 3-flute and 4-flute, and 5- flute Gorilla Mill Missing Link Thread Mills are made versatile through geometric enhancements. A patented variable helix/index design differentiates the Gorilla Mill Missing Link from the competition, making it the ideal choice for increased tool life and cycle time reduction in threading.

    PATENT NO.7367754
    PATENT NO.7153067

  • 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  

  • GMX-35

    Newly formulated, special high-performance coating for high speed machining. GMX-35 performance surpasses all conventional coatings. This universal high-performance coating is especially designed for milling and drilling. Also suitable for dry machining.

    Structure Nanohardness (GPa) Friction (fretting) Coefficient Thickness (um) Maximum Working Temp. Color
    Gradient 32 0.35 2-4 1100°C (2012°F) Silver Gray

  • 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.

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