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GARR TOOL 255MA Square End Mill
GARR TOOL 255MA Square End Mill
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Solid submicron-grain carbide end mill with a center-cutting design for steels, stainless steel, and exotic alloys. Features square-end, 5 flutes, 45° helix, AlTiN coating.
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Technical Specifications
GARR TOOL 255MA Square End Mill
Exact tool data. Clear decisions.
Compare the configurations in this series. Dimensions and geometry apply to the selected EDP.
Tool configurations
- d1
- Cutting diameter
- d2
- Shank diameter
- l2
- Length of cut
- l1
- Overall length
Manufacturer drawing for dimension reference. Refer to the selected EDP for its dimensions.
| EDP | Cutting diameter d1 (in) | Shank diameter d2 (in) | Length of cut l2 (in) | Overall length l1 (in) | Flutes | End type | Coating | Weight (lb) |
|---|---|---|---|---|---|---|---|---|
| 52087 | 1/8 | 1/8 | 1/4 | 1-1/2 | 5 | SQ | ALTIN | 0.0100 |
| 52097 | 1/8 | 1/8 | 1/2 | 2 | 5 | SQ | ALTIN | 0.0200 |
| 52107 | 3/16 | 3/16 | 5/16 | 2 | 5 | SQ | ALTIN | 0.0300 |
| 52127 | 3/16 | 3/16 | 9/16 | 2 | 5 | SQ | ALTIN | 0.0300 |
| 52207 | 1/4 | 1/4 | 3/8 | 2 | 5 | SQ | ALTIN | 0.0400 |
| 52227 | 1/4 | 1/4 | 3/4 | 2-1/2 | 5 | SQ | ALTIN | 0.0600 |
| 52237 | 1/4 | 1/4 | 1-1/8 | 3 | 5 | SQ | ALTIN | 0.0700 |
| 52247 | 1/4 | 1/4 | 1-1/4 | 4 | 5 | SQ | ALTIN | 0.0800 |
| 52307 | 5/16 | 5/16 | 7/16 | 2 | 5 | SQ | ALTIN | 0.0700 |
| 52327 | 5/16 | 5/16 | 13/16 | 2-1/2 | 5 | SQ | ALTIN | 0.0800 |
| 52347 | 5/16 | 5/16 | 1-1/4 | 4 | 5 | SQ | ALTIN | 0.1300 |
| 52407 | 3/8 | 3/8 | 1/2 | 2 | 5 | SQ | ALTIN | 0.0900 |
| 52427 | 3/8 | 3/8 | 7/8 | 2-1/2 | 5 | SQ | ALTIN | 0.1200 |
| 52437 | 3/8 | 3/8 | 1-1/4 | 3 | 5 | SQ | ALTIN | 0.1600 |
| 52447 | 3/8 | 3/8 | 1-1/2 | 3-1/2 | 5 | SQ | ALTIN | 0.2100 |
| 52507 | 7/16 | 7/16 | 9/16 | 2-1/2 | 5 | SQ | ALTIN | 0.2200 |
| 52527 | 7/16 | 7/16 | 1 | 2-3/4 | 5 | SQ | ALTIN | 0.2200 |
| 52547 | 7/16 | 7/16 | 2 | 4 | 5 | SQ | ALTIN | 0.3100 |
| 52607 | 1/2 | 1/2 | 5/8 | 2-1/2 | 5 | SQ | ALTIN | 0.2700 |
| 52627 | 1/2 | 1/2 | 1-1/4 | 3 | 5 | SQ | ALTIN | 0.2500 |
| 52647 | 1/2 | 1/2 | 2 | 4 | 5 | SQ | ALTIN | 0.4000 |
| 52707 | 5/8 | 5/8 | 3/4 | 3 | 5 | SQ | ALTIN | 0.5000 |
| 52727 | 5/8 | 5/8 | 1-5/8 | 3-1/2 | 5 | SQ | ALTIN | 0.5500 |
| 52747 | 5/8 | 5/8 | 2-1/2 | 6 | 5 | SQ | ALTIN | 0.9500 |
| 52807 | 3/4 | 3/4 | 7/8 | 3 | 5 | SQ | ALTIN | 0.7500 |
| 52827 | 3/4 | 3/4 | 1-5/8 | 4 | 5 | SQ | ALTIN | 0.9300 |
| 52837 | 3/4 | 3/4 | 2 | 5 | 5 | SQ | ALTIN | 1.1500 |
| 52847 | 3/4 | 3/4 | 3-1/4 | 6 | 5 | SQ | ALTIN | 1.3100 |
| 52897 | 1 | 1 | 1-1/8 | 4 | 5 | SQ | ALTIN | 1.7300 |
| 52927 | 1 | 1 | 2 | 4 | 5 | SQ | ALTIN | 1.6200 |
| 52947 | 1 | 1 | 3-1/4 | 6 | 5 | SQ | ALTIN | 2.3100 |
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Technical overview
Geometry
Heavy core, Sharp corners
Construction
Solid submicron grain carbide end mill - center cutting
Coating and finish
Square End - 5 Flute - 45 Degree Helix - AlTiN Coating
Tolerances
flute dia. +.000-.002" (+.000-.050mm) · shank dia. h6
Setup requirements
Rigid work holding, machine stability and part integrity are critical
Operating guidance
Dry or semi-dry machining
Advantages
Applications & compatible materials
Applications
- Milling
Compatible materials
- Steels
- Stainless Steel
- Exotics
- Titanium
Technical documents
Cutting parameters, setup guidance, and the series catalog.
