1/4-20 0.157 Dia Single Pitch Form Solid Carbide Thread Mill

SKU 422-3351

1/4-20 0.157 Dia Single Pitch Form Solid Carbide Thread Mill

Availability In stock

Shipping Ups Ground

$66.44
SKU 422-3351
Mfg SKU # 90002_GMDTTM14-20UN3FL
end mill category Thread Mill
Brand Gorilla Mill
Series Name Missing Link
cutting diameter 0.157
Shank Diameter 5/16
overall length 2-1/2
Number of Flutes 3
Material micrograin carbide
finish coating GMX-35
Flute Length Type Single Pitch Form
Single or Double End single
To be used on alloy steel, carbon steel, cast iron, exotic material, hardened steel, high temp alloy, high temp nickel base alloy, inconel, stainless steel, titanium
minor diameter 0.205
center cutting Yes
end shape square end
thread length 0.787
thread size 1/4-20
thread standard UNC
Shank Type round shank
Full Details
  • Made in USAMade in USA

Product Spotlight

  • Single Pitch | GMX-35 Coatings

    The 3-flute, 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.

  • 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.

Reviews