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Gorilla Mill Silverback End Mill Serials. A descendant of Gorilla Mills.
Aluminum Cutting Pro.
Made in USA.
- Variable flute. Engineered to repel aluminum. For roughing and finishing of non-ferrous materials, aluminum, copper, brass, plastic, etc. High velocity, high material removal rate. Center cutting.
- Available in special diameters, lengths and completely resharpenable.
- Should be run at specific parameters. See “Speeds and Feeds” chart HERE.
Gorilla coatings:
- are just a few thousandths of a millimeter thick but harder than steel; these low-friction coatings are extremely wear-resistant and chemically inert. The optimum coating is determined on the basis of both conditions of use and economic considerations.
About the ZrN Coating:

- Structure: Monolayer
- Nanohardness (GPa): 20
- Friction (fretting) Coefficient: 0.4
- Thickness (µm): 2-4
- Maximum Working Temperature: 550° C (1020° F)
- Color: Pale Yellow
Cutting Materials:
- Aircraft Aluminum, (2000,5000, 7000 series), Soft Aluminum, (6061), Copper (200 Brinell <), Copper (200 Brinell >), Cast Aluminum (6% Silcon & <), Cast Aluminum (6% Silcon & >), Brass, Bronze
Machining Method:

Tolerance:
- Cut Dia +.000/-.002,
- Shank Dia -.0001/-.0005,
- LOC +.025/+.050,
- OAL +/-.050
Dimensions:

ACCUSIZE SKU Gorilla Mill SKU D1
Cutting Dia.D2
Shank Dia.LOC OAL TOOL LENGTH 0002-1014 GMA18FS3ZrN 1/8 1/8 1/4 1-1/2 STUB 0002-1016 GMA18FSH3ZrN 1/8 1/8 3/8 2 STUB 0002-0425 GMA18F3ZrN 1/8 1/8 1/2 1-1/2 STANDARD 0002-1018 GMA316FS3ZrN 3/16 3/16 3/8 2 STUB 0002-0435 GMA316F3ZrN 3/16 3/16 5/8 2 STANDARD 0002-1020 GMA14FS3ZrN 1/4 1/4 3/8 2 STUB 0002-1022 -
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