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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
Item#Gorilla Mill
Item#D1
Cutting Dia.Shank Dia LOC OAL Tool
Length0002-1014 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 GMA14FSH3ZrN 1/4" 1/4" 1/2" 2" STUB 0002-0409 GMA14F3ZrN 1/4" 1/4" 3/4" 2-1/2" STANDARD 0002-0410 GMA14FL3ZrN 1/4" 1/4" 1-1/2" 4" LONG 0002-1024 GMA516FS3ZrN 5/16" 5/16" 7/16" 2" STUB 0002-0475 GMA516F3ZrN 5/16" 5/16" 7/8" 2-1/2" STANDARD 0002-0476 GMA516FL3ZrN 5/16" 5/16" 1-1/2" 4" STANDARD 0002-1026 GMA38FS3ZrN 3/8" 3/8" 1/2" 2" STUB 0002-0462 GMA38F3ZrN 3/8" 3/8" 7/8" 2-1/2" STANDARD 0002-0463 GMA38FHL3ZrN 3/8" 3/8" 1" 2-1/2" STANDARD 0002-0464 GMA38FXL3ZrN 3/8" 3/8" 2" 4" STANDARD 0002-1028 GMA716FS3ZrN 7/16" 7/16" 1/2" 2-1/2" STUB 0002-0504 GMA716F3ZrN 7/16" 7/16" 1" 2-1/2" STANDARD 0002-1030 GMA12FS3ZrN 1/2" 1/2" 5/8" 2-1/2" STUB 0002-0385 GMA12FH3ZrN 1/2" 1/2" 1" 3" STANDARD 0002-0384 GMA12F3ZrN 1/2" 1/2" 1-1/4" 3" STANDARD 0002-0386 GMA12FL3ZrN 1/2" 1/2" 1-1/2" 4" LONG 0002-0387 GMA12FXL3ZrN 1/2" 1/2" 2" 4" EXTRA LONG 0002-1032 GMA58FS3ZrN 5/8" 5/8" 3/4" 3" STUB 0002-0484 GMA58F3ZrN 5/8" 5/8" 1-1/4" 3-1/2" STANDARD 0002-0485 GMA58FHL3ZrN 5/8" 5/8" 1-5/8" 4" STANDARD 0002-0486 GMA58FL3ZrN 5/8" 5/8" 2" 4" LONG 0002-1034 GMA34FS3ZrN 3/4" 3/4" 1" 3" STUB 0002-0437 GMA34F3ZrN 3/4" 3/4" 1-1/2" 4" STANDARD 0002-0438 GMA34FHL3ZrN 3/4" 3/4" 1-5/8" 4" STANDARD 0002-0439 GMA34FL3ZrN 3/4" 3/4" 2" 4" LONG 0002-0440 GMA34FLH3ZrN 3/4" 3/4" 2-1/4" 5" LONG 0002-1036 GMA10FS3ZrN 1" 1" 1-1/4" 4" STUB 0002-0356 GMA10F3ZrN 1" 1" 1-1/2" 4" STANDARD 0002-0357 GMA10FL3ZrN 1" 1" 2" 4" LONG 0002-0358 GMA10FXL3ZrN 1" 1" 2-1/2" 5" EXTRA LONG -
Product NameMaterial Number

