STANDARD DIMENSIONS
55° Aluminum End Mill Sizes
Select a polished-flute profile below to review its dimensional drawing, typical applications and standard order numbers.
ALUMINUM MILLING APPLICATION
Precision-Machined Aluminum Component
This aluminum milling application example presents the pockets, slots, thin-wall sections and detailed profile features commonly encountered in precision component machining.
Machining Features
- Pocket, slot and profile milling features
- Thin-wall sections and detailed ribs
- Complex aluminum component geometry
Review the 55° aluminum end mill profiles and standard dimensions below to select a suitable flat, ball-nose or corner-radius tool.
55° ALUMINUM SERIES
3-Flute Flat End Mills
Slotting, Side Milling and Flat Bottoms
For slotting, side milling and flat-bottom machining with open flute space for efficient chip evacuation.
Standard Dimensions
Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.
| Order No. | Ød | L1 | ØD | OAL | Flutes |
|---|---|---|---|---|---|
| 55-ALE-1.0-50-3F | 1 | 3 | 4 | 50 | 3 |
| 55-ALE-1.5-50-3F | 1.5 | 4 | 4 | 50 | 3 |
| 55-ALE-2.0-50-3F | 2 | 6 | 4 | 50 | 3 |
| 55-ALE-2.5-50-3F | 2.5 | 7 | 4 | 50 | 3 |
| 55-ALE-3.0-50A-3F | 3 | 9 | 3 | 50 | 3 |
| 55-ALE-3.0-75A-3F | 3 | 12 | 3 | 75 | 3 |
| 55-ALE-3.0-50B-3F | 3 | 9 | 4 | 50 | 3 |
| 55-ALE-4.0-50-3F | 4 | 10 | 4 | 50 | 3 |
| 55-ALE-4.0-75-3F | 4 | 16 | 4 | 75 | 3 |
| 55-ALE-4.0-100-3F | 4 | 20 | 4 | 100 | 3 |
| 55-ALE-5.0-50-3F | 5 | 15 | 5 | 50 | 3 |
| 55-ALE-5.0-75-3F | 5 | 18 | 5 | 75 | 3 |
| 55-ALE-5.0-100-3F | 5 | 25 | 5 | 100 | 3 |
| 55-ALE-6.0-50-3F | 6 | 18 | 6 | 50 | 3 |
| 55-ALE-6.0-75-3F | 6 | 25 | 6 | 75 | 3 |
| 55-ALE-6.0-100-3F | 6 | 30 | 6 | 100 | 3 |
| 55-ALE-6.0-150-3F | 6 | 45 | 6 | 150 | 3 |
| 55-ALE-8.0-60-3F | 8 | 24 | 8 | 60 | 3 |
| 55-ALE-8.0-75-3F | 8 | 30 | 8 | 75 | 3 |
| 55-ALE-8.0-100-3F | 8 | 35 | 8 | 100 | 3 |
| 55-ALE-8.0-150-3F | 8 | 50 | 8 | 150 | 3 |
| 55-ALE-8.0-200-3F | 8 | 60 | 8 | 200 | 3 |
| 55-ALE-10-75-3F | 10 | 30 | 10 | 75 | 3 |
| 55-ALE-10-100-3F | 10 | 40 | 10 | 100 | 3 |
| 55-ALE-10-150-3F | 10 | 60 | 10 | 150 | 3 |
| 55-ALE-10-200-3F | 10 | 70 | 10 | 200 | 3 |
| 55-ALE-12-75-3F | 12 | 35 | 12 | 75 | 3 |
| 55-ALE-12-100-3F | 12 | 45 | 12 | 100 | 3 |
| 55-ALE-12-150-3F | 12 | 60 | 12 | 150 | 3 |
| 55-ALE-12-200-3F | 12 | 70 | 12 | 200 | 3 |
| 55-ALE-14-100-3F | 14 | 45 | 14 | 100 | 3 |
| 55-ALE-14-150-3F | 14 | 80 | 14 | 150 | 3 |
| 55-ALE-16-100-3F | 16 | 45 | 16 | 100 | 3 |
| 55-ALE-16-150-3F | 16 | 80 | 16 | 150 | 3 |
| 55-ALE-16-200-3F | 16 | 80 | 16 | 200 | 3 |
| 55-ALE-18-100-3F | 18 | 45 | 18 | 100 | 3 |
| 55-ALE-18-150-3F | 18 | 80 | 18 | 150 | 3 |
| 55-ALE-20-100-3F | 20 | 45 | 20 | 100 | 3 |
| 55-ALE-20-150-3F | 20 | 80 | 20 | 150 | 3 |
| 55-ALE-20-200-3F | 20 | 90 | 20 | 200 | 3 |
55° ALUMINUM SERIES
2-Flute Ball-Nose End Mills
3D Contouring and Curved Surfaces
For 3D contouring, curved surfaces and non-ferrous mold features requiring smooth tool-path transitions.
Standard Dimensions
Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.
| Order No. | Ød | R | L1 | ØD | OAL | Flutes |
|---|---|---|---|---|---|---|
| 55-ALR-R0.5-50-2F | 1 | R0.5 | 2 | 4 | 50 | 2 |
| 55-ALR-R0.75-50-2F | 1.5 | R0.75 | 3 | 4 | 50 | 2 |
| 55-ALR-R1.0-50-2F | 2 | R1.0 | 4 | 4 | 50 | 2 |
| 55-ALR-R1.25-50-2F | 2.5 | R1.25 | 4 | 4 | 50 | 2 |
| 55-ALR-R1.5-50A-2F | 3 | R1.5 | 6 | 3 | 50 | 2 |
| 55-ALR-R1.5-75A-2F | 3 | R1.5 | 6 | 3 | 75 | 2 |
| 55-ALR-R1.5-100A-2F | 3 | R1.5 | 6 | 3 | 100 | 2 |
| 55-ALR-R1.5-50B-2F | 3 | R1.5 | 6 | 4 | 50 | 2 |
| 55-ALR-R2.0-50-2F | 4 | R2.0 | 8 | 4 | 50 | 2 |
| 55-ALR-R2.0-75-2F | 4 | R2.0 | 8 | 4 | 75 | 2 |
| 55-ALR-R2.0-100-2F | 4 | R2.0 | 8 | 4 | 100 | 2 |
| 55-ALR-R2.5-50-2F | 5 | R2.5 | 10 | 5 | 50 | 2 |
| 55-ALR-R2.5-75-2F | 5 | R2.5 | 10 | 5 | 75 | 2 |
| 55-ALR-R2.5-100-2F | 5 | R2.5 | 10 | 5 | 100 | 2 |
| 55-ALR-R3.0-50-2F | 6 | R3.0 | 12 | 6 | 50 | 2 |
| 55-ALR-R3.0-75-2F | 6 | R3.0 | 12 | 6 | 75 | 2 |
| 55-ALR-R3.0-100-2F | 6 | R3.0 | 12 | 6 | 100 | 2 |
| 55-ALR-R3.0-150-2F | 6 | R3.0 | 12 | 6 | 150 | 2 |
| 55-ALR-R4.0-60-2F | 8 | R4.0 | 16 | 8 | 60 | 2 |
| 55-ALR-R4.0-75-2F | 8 | R4.0 | 16 | 8 | 75 | 2 |
| 55-ALR-R4.0-100-2F | 8 | R4.0 | 16 | 8 | 100 | 2 |
| 55-ALR-R4.0-150-2F | 8 | R4.0 | 16 | 8 | 150 | 2 |
| 55-ALR-R5.0-75-2F | 10 | R5.0 | 20 | 10 | 75 | 2 |
| 55-ALR-R5.0-100-2F | 10 | R5.0 | 20 | 10 | 100 | 2 |
| 55-ALR-R5.0-150-2F | 10 | R5.0 | 20 | 10 | 150 | 2 |
| 55-ALR-R6.0-75-2F | 12 | R6.0 | 24 | 12 | 75 | 2 |
| 55-ALR-R6.0-100-2F | 12 | R6.0 | 24 | 12 | 100 | 2 |
| 55-ALR-R6.0-150-2F | 12 | R6.0 | 24 | 12 | 150 | 2 |
| 55-ALR-R7.0-100-2F | 14 | R7.0 | 28 | 14 | 100 | 2 |
| 55-ALR-R7.0-150-2F | 14 | R7.0 | 28 | 14 | 150 | 2 |
| 55-ALR-R8.0-100-2F | 16 | R8.0 | 32 | 16 | 100 | 2 |
| 55-ALR-R8.0-150-2F | 16 | R8.0 | 32 | 16 | 150 | 2 |
| 55-ALR-R9.0-100-2F | 18 | R9.0 | 36 | 18 | 100 | 2 |
| 55-ALR-R9.0-150-2F | 18 | R9.0 | 36 | 18 | 150 | 2 |
| 55-ALR-R10.0-100-2F | 20 | R10.0 | 40 | 20 | 100 | 2 |
| 55-ALR-R10.0-150-2F | 20 | R10.0 | 40 | 20 | 150 | 2 |
55° ALUMINUM SERIES
3-Flute Corner-Radius End Mills
Profiles, Shoulders and Semi-Finishing
For profile milling, shoulders and semi-finishing where corner strength and smooth chip flow are required.
Standard Dimensions
Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.
| Order No. | Ød | R | L1 | ØD | OAL | Flutes |
|---|---|---|---|---|---|---|
| 55-ALC-1.0R0.2-50-3F | 1 | R0.2 | 3 | 4 | 50 | 3 |
| 55-ALC-1.5R0.2-50-3F | 1.5 | R0.2 | 4 | 4 | 50 | 3 |
| 55-ALC-2.0R0.2-50-3F | 2 | R0.2 | 6 | 4 | 50 | 3 |
| 55-ALC-2.0R0.5-50-3F | 2 | R0.5 | 6 | 4 | 50 | 3 |
| 55-ALC-2.5R0.2-50-3F | 2.5 | R0.2 | 7 | 4 | 50 | 3 |
| 55-ALC-2.5R0.5-50-3F | 2.5 | R0.5 | 7 | 4 | 50 | 3 |
| 55-ALC-3.0R0.2-50A-3F | 3 | R0.2 | 9 | 3 | 50 | 3 |
| 55-ALC-3.0R0.5-50A-3F | 3 | R0.5 | 9 | 3 | 50 | 3 |
| 55-ALC-3.0R0.5-75A-3F | 3 | R0.5 | 12 | 3 | 75 | 3 |
| 55-ALC-3.0R0.5-50B-3F | 3 | R0.5 | 9 | 4 | 50 | 3 |
| 55-ALC-4.0R0.5-50-3F | 4 | R0.5 | 10 | 4 | 50 | 3 |
| 55-ALC-4.0R1.0-50-3F | 4 | R1.0 | 10 | 4 | 50 | 3 |
| 55-ALC-4.0R0.5-75-3F | 4 | R0.5 | 16 | 4 | 75 | 3 |
| 55-ALC-4.0R1.0-75-3F | 4 | R1.0 | 16 | 4 | 75 | 3 |
| 55-ALC-4.0R0.5-100-3F | 4 | R0.5 | 20 | 4 | 100 | 3 |
| 55-ALC-4.0R1.0-100-3F | 4 | R1.0 | 20 | 4 | 100 | 3 |
| 55-ALC-6.0R0.5-50-3F | 6 | R0.5 | 18 | 6 | 50 | 3 |
| 55-ALC-6.0R1.0-50-3F | 6 | R1.0 | 18 | 6 | 50 | 3 |
| 55-ALC-6.0R0.5-75-3F | 6 | R0.5 | 25 | 6 | 75 | 3 |
| 55-ALC-6.0R1.0-75-3F | 6 | R1.0 | 25 | 6 | 75 | 3 |
| 55-ALC-6.0R0.5-100-3F | 6 | R0.5 | 30 | 6 | 100 | 3 |
| 55-ALC-6.0R1.0-100-3F | 6 | R1.0 | 30 | 6 | 100 | 3 |
| 55-ALC-8.0R0.5-60-3F | 8 | R0.5 | 24 | 8 | 60 | 3 |
| 55-ALC-8.0R1.0-60-3F | 8 | R1.0 | 24 | 8 | 60 | 3 |
| 55-ALC-8.0R0.5-75-3F | 8 | R0.5 | 30 | 8 | 75 | 3 |
| 55-ALC-8.0R1.0-75-3F | 8 | R1.0 | 30 | 8 | 75 | 3 |
| 55-ALC-8.0R0.5-100-3F | 8 | R0.5 | 35 | 8 | 100 | 3 |
| 55-ALC-8.0R1.0-100-3F | 8 | R1.0 | 35 | 8 | 100 | 3 |
| 55-ALC-10R0.5-75-3F | 10 | R0.5 | 30 | 10 | 75 | 3 |
| 55-ALC-10R1.0-75-3F | 10 | R1.0 | 30 | 10 | 75 | 3 |
| 55-ALC-10R0.5-100-3F | 10 | R0.5 | 40 | 10 | 100 | 3 |
| 55-ALC-10R1.0-100-3F | 10 | R1.0 | 40 | 10 | 100 | 3 |
| 55-ALC-12R0.5-75-3F | 12 | R0.5 | 35 | 12 | 75 | 3 |
| 55-ALC-12R1.0-75-3F | 12 | R1.0 | 35 | 12 | 75 | 3 |
| 55-ALC-12R0.5-100-3F | 12 | R0.5 | 45 | 12 | 100 | 3 |
| 55-ALC-12R1.0-100-3F | 12 | R1.0 | 45 | 12 | 100 | 3 |
Need a Standard Size or Custom End Mill?
Send us the order number, required quantity and workpiece material. If the size is not listed, include the cutting diameter, flute length, shank diameter and overall length for evaluation.