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4G Mills - Performance HSC Carbide Milling
Speed, Accuracy, Durability & Choice
Huge range of tool diameters, lengths and geometries makes 4G Mills the most comprehensive milling cutter range for dedicated steel milling.
★★★★★
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H
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 Browse the Range
4G Mills Corner Radius
2-4 flute corner radius milling cutters for performance steel milling
4G Mills Ball Nose
Nanograin carbide 2 flute ball nose milling cutters for performance steel milling
Advantages
Durability
Advanced Y1200 coating combined with unique geometries and premium carbide offering maximum tool life
Speed
Dedicated range for HSC (high speed cutting) of steels <55HRc, stainless steel & cast iron
Choice
Huge range of tool geometries and lengths with diameters ranging from Ø0.03mm - Ø25mm
Accuracy
Manufactured to tight tolerances resulting in precision made components with mirror surface finish
Features
Ultrafine Carbide
Increased performance over standard micrograin carbide
Nanograin Ball Nose
Nanograin carbide ball nose cutters with exceptional heat resistance
High Speed Milling
For HSC (high speed cutting) on steel and hardened steel <55HRC
Optional Multiple Helix
Available for extra strength, heavy cutting & less vibration
M Chip Breaker
1
Wide Clamping Area
2
6 Cornered Insert
High cost efficiency from multi-corners
1
Streamlined Holder Design
Improved chip evacuation in deep shouldering and slotting
2
Through Coolant System
Improved chip flow and tool life thanks to insert cooling
3
3-Side Supporting System
Stable tool life
4
Strong Clamping Screws
Enable rigid clamping
Application
Material Suitability
| Material | Excellent | Good |
|---|---|---|
|
P
Steel
|
• | • |
|
H
Hardened Steel*
|
• | • |
|
M
Stainless Steel
|
• | • |
|
S
HRSA's
|
• | • |
|
K
Cast Iron
|
• | • |
|
N
Aluminium & Non-Ferrous
|
• | • |
*Up to 55HRC
Possible Machining Methods
Profiling
Face Milling
Shoulder Milling
Slotting
Trochoidal Milling
Circular Interpolation
Example Cutting Data
| 2 Flute Ball Nose | 4 Flute Corner Radius End Mill | 6 Flute 45 Degree Helix End Mill | |
|---|---|---|---|
| Tool | SEMD98060E | SEME0110005E | SEME7508040E |
| Size | Ø6 x 6 x 12 x 90 | Ø10 (R0.5) x 10 x 25 x 100 | Ø8 x 8 x 40 x 130 |
| Workpiece Material | Steel 35 HRc | Steel 35 HRc | Steel 45 HRc |
| Surface Speed Vc | 130 m/min | 51 m/min | 166 m/min |
| RPM | 6900 | 1640 | 6615 |
| Feed | 830 mm/min | 180 mm/min | 2725 mm/min |
| Feed Per Tooth | 0.060 mm/tooth | 0.027 mm/tooth | 0.069 mm/tooth |
| Machining Method | Profiling | Side Cutting | Side Cutting |
| Depth of Cut | Axial 0.2mm Radial 1.2mm |
Axial 25mm Radial 0.5mm |
Axial 8mm Radial 0.4mm |
*Conservative example cutting data given. Tools can be run faster or slower depending on machine capability. Data based on ENMX06 insert.