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3-Flute U-Groove End Mill for Aluminum

Rainbow-coated U-groove end mill designed for efficient deep-pocket machining in aluminum.

Standard Solid Carbide End Mills

3-Flute U-Groove End Mill for Aluminum

Optimized U-groove geometry delivers fast chip evacuation and smooth aluminum machining.

Product Advantages

01Large polished chip space
02Efficient aluminum chip evacuation
03Reduced material adhesion
04High-speed cutting stability

Technical Information

Item Specification
Tool Material Premium micro-grain solid carbide
Geometry 3-flute U-groove geometry with polished chip channels
Coating Coating options available by application
Recommended Materials Aluminum, aluminum alloys, copper, brass and other non-ferrous metals
Typical Operations High-speed slotting, pocketing, side milling and aluminum finishing

Published Specifications & Cutting Data

The following values are based on the specifications currently published for this product. Please confirm stock dimensions and machining conditions before ordering.

Product Information

Item Description
Product Name Rainbow Coated 3-Flute U-Groove Square End Mill
Tool Material Solid Carbide
Number of Flutes 3 Flutes
Flute Shape Wide U-Shaped Flutes
End Style Square End / Flat End
Coating Rainbow Low-Friction Coating
Geometry High Helix and Positive Rake
Shank Type Straight Shank
Cutting Direction Right-Hand Cutting
Application Aluminum and Non-Ferrous Materials
Manufacturing Method Precision Ground

Reference Specifications

Cutter Dia. D Cutting Length L Shank Dia. D2 Overall Length L2 Flutes
1.0 3 4 50 3
1.5 5 4 50 3
2.0 6 4 50 3
2.5 8 4 50 3
3.0 9 3 50 3
3.0 9 4 50 3
3.5 11 4 50 3
4.0 12 4 50 3
5.0 15 5 50 3
5.0 15 6 50 3
6.0 18 6 50 3
7.0 24 8 60 3
8.0 24 8 60 3
9.0 30 10 75 3
10.0 30 10 75 3
11.0 35 12 75 3
12.0 35 12 75 3
14.0 45 14 100 3
16.0 45 16 100 3
18.0 45 18 100 3
20.0 45 20 100 3

Reference Dimensional Tolerance

Cutter Diameter Diameter Tolerance
D ≤ 12 mm 0 / −0.015 mm
D > 12 mm 0 / −0.020 mm

Reference Cutting Parameters

Cutter Dia. Spindle Speed Feed Rate
4 mm 16,000–20,000 rpm 1,000–2,000 mm/min
6 mm 12,000–16,000 rpm 1,200–2,400 mm/min
8 mm 9,000–13,000 rpm 1,400–2,600 mm/min
10 mm 7,000–10,000 rpm 1,500–2,800 mm/min
12 mm 6,000–8,000 rpm 1,500–2,800 mm/min
16 mm 4,000–6,000 rpm 1,400–2,600 mm/min
20 mm 3,000–5,000 rpm 1,200–2,400 mm/min

Customization & OEM Service

Custom cutting diameters, flute lengths, overall lengths, shank diameters, tool geometry, coatings, laser marking and private-label packaging are available according to your machining requirements.

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