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Return to 4 Flute Gorilla Mill (inch)

High Performance

4 Flute Radius End

1/2" Cutting Diameter

4 Flute Gorilla Mill Radius
LOC
Radius
Weldon Flat
Product #: GM12RS4015
EDP#: 10212
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Desc: D1: 1/2", D2: 1/2", LOC: 5/8", OAL: 2-1/2"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 48
Product #: GM12RH4015
EDP#: 10187
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Desc: D1: 1/2", LOC: 1", OAL: 3"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 36
Product #: GM12R4015
EDP#: 10172
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/4", OAL: 3"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 85
Product #: GM12RL4015
EDP#: 10202
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Desc: D1: 1/2", LOC: 1-1/2", OAL: 4"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 7
Product #: GM12RXL4015
EDP#: 10237
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Desc: D1: 1/2", LOC: 2", OAL: 4"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 17
Product #: GM12RSL4015
EDP#: 10227
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Desc: D1: 1/2", LOC: 3", OAL: 6"
Corner Radius: 0.015"
Coating: GMX-35
Available Qty: 8
Product #: GM12RS4030
EDP#: 10214
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Desc: D1: 1/2", D2: 1/2", LOC: 5/8", OAL: 2-1/2"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 228
Product #: GM12RH4030
EDP#: 10189
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Desc: D1: 1/2", D2: 1/2", LOC: 1", OAL: 3"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 122
Product #: GM12R4030
EDP#: 10174
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/4", OAL: 3"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 262
Product #: GM12RL4030
EDP#: 10203
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/2", OAL: 4"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 31
Product #: GM12RXL4030
EDP#: 10238
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Desc: D1: 1/2", D2: 1/2", LOC: 2", OAL: 4"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 88
Product #: GM12RSL4030
EDP#: 10228
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Desc: D1: 1/2", D2: 1/2", LOC: 3", OAL: 6"
Corner Radius: 0.030"
Coating: GMX-35
Available Qty: 22
Product #: GM12RS4060
EDP#: 10216
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Desc: D1: 1/2", D2: 1/2", LOC: 5/8", OAL: 2-1/2"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 33
Product #: GM12RH4060
EDP#: 10191
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Desc: D1: 1/2", LOC: 1", OAL: 3"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 19
Product #: GM12R4060
EDP#: 10176
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/4", OAL: 3"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 48
Product #: GM12RL4060
EDP#: 10204
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Desc: D1: 1/2", LOC: 1-1/2", OAL: 4"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 68
Product #: GM12RXL4060
EDP#: 10239
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Desc: D1: 1/2", LOC: 2", OAL: 4"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 18
Product #: GM12RSL4060
EDP#: 10229
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Desc: D1: 1/2", LOC: 3", OAL: 6"
Corner Radius: 0.060"
Coating: GMX-35
Available Qty: 2
Product #: GM12RS4090
EDP#: 10218
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Desc: D1: 1/2", D2: 1/2", LOC: 5/8", OAL: 2-1/2"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 23
Product #: GM12RH4090
EDP#: 10193
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Desc: D1: 1/2", LOC: 1", OAL: 3"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 12
Product #: GM12R4090
EDP#: 10178
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/4", OAL: 3"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 21
Product #: GM12RL4090
EDP#: 10205
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Desc: D1: 1/2", LOC: 1-1/2", OAL: 4"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 14
Product #: GM12RXL4090
EDP#: 10240
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Desc: D1: 1/2", LOC: 2", OAL: 4"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 9
Product #: GM12RSL4090
EDP#: 10230
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Desc: D1: 1/2", LOC: 3", OAL: 6"
Corner Radius: 0.090"
Coating: GMX-35
Available Qty: 20
Product #: GM12RS4120
EDP#: 10220
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Desc: D1: 1/2", D2: 1/2", LOC: 5/8", OAL: 2-1/2"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 25
Product #: GM12RH4120
EDP#: 10195
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Desc: D1: 1/2", LOC: 1", OAL: 3"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 25
Product #: GM12R4120
EDP#: 10180
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Desc: D1: 1/2", D2: 1/2", LOC: 1-1/4", OAL: 3"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 48
Product #: GM12RL4120
EDP#: 10206
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Desc: D1: 1/2", LOC: 1-1/2", OAL: 4"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 20
Product #: GM12RXL4120
EDP#: 10241
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Desc: D1: 1/2", LOC: 2", OAL: 4"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 18
Product #: GM12RSL4120
EDP#: 10231
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Desc: D1: 1/2", LOC: 3", OAL: 6"
Corner Radius: 0.120"
Coating: GMX-35
Available Qty: 20
calculator

End Mill
Speeds & Feeds
Calculator


Go
4 Flute Square diagram

Tolerances

  • Cut Dia +.000/-.002
  • Shank Dia -.0001/-.0005
  • LOC +.025/+.050
  • OAL +/-.050

Machining Method

Profiling
Profiling Diagram
Full Slotting
Full Slotting Diagram
Pocketing
Pocketing Diagram
High-Velocity
High-Velocity Diagram
4 Flute Gorilla Mill (inch)

Patented variable flute and index design which reduces chatter and vibration. Radius corners for stronger edges and part radius. Recommended for aggressive machining applications in all materials including, stainless, inconel, titanium, tool steels and hardened materials. Should be run at specific parameters. See "Speeds and Feeds" calculator. Produced with the highest Transverse Rupture Strength (TRS) nano-grain carbide substrate available.

Available in special diameters, lengths and completely resharpenable.

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2020 GorillaMill Catalog Cover