
Radius cutter for 3-dimensional machining due to helical cutting edges
Unique twisted insert geometries assures secure insert clamping for high stability. Two types of inserts fit one cutter: radius and high efficiency inserts
Applications & Features
Applications
Features
1. Multi-functional cutter body with superior reliability
• Two types of inserts fit one cutter: radius and high efficiency inserts
• Secure insert clamping to prevent insert from moving during machining
2. High-feed insert with greater depth of cut
• Smooth chip control enables stable machining
3. Radius insert with high reliability
• Insert cross section is designed to be 2 times as large as that of a round insert
• Excellent chip evacuation in various applications
Inserts & Grades
Inserts
LNMX-MJ/LNMX-ML
- Radius insert
- Maximum depth of cut
– LNMU04: 4.0 mm
– LNMU05: 5.0 mm
– LNMU06: 6.0 mm
LNMX-HJ/LNMX-HL
- For High-feed machining
- Maximum depth of cut
– LNMX04: 1.3 mm
– LNMX06: 2 mm
Grades
AH8015
- Good balance between wear and fracture resistance
- First choice for machining heat-resistant alloy under general cutting conditions
AH3225
- Good balance between wear and fracture resistance
- Suitable for steel and stainless steel
AH120
- Good balance between wear and fracture resistance
- Suitable for machining steel, stainless steel, and cast iron under general cutting conditions
AH3135
- High fracture resistance
- Suitable for machining steel and stainless steel under general cutting conditions
Cutter bodies
Practical examples
Example #1
General Engineering
Part: | Fixture part |
Material: | SUS304 |
Cutter: | EXLN04M025C25.0R03 ( ø25, z = 3) |
Insert: | LNMX0405R4-MJ |
Grade: | AH3135 |
Cutting conditions: | Vc = 220 ← 120 (m/min) fz = 0.4 ← 0.1 (mm/t) Vf = 3360 ← 535 (mm/min) ap = 3.5 ← 3 (mm) ae = 15 (mm) Application: Shoulder milling Coolant: External supply Machine: Vertical M/C |

Example #2
Die and Mold Industry
Part: | Slide core |
Material: | NAK80 (40HRC) |
Cutter: | EXLN04M025C25.0R03 ( ø25, z = 3) |
Insert: | LNMX0405R4-MJ |
Grade: | AH3135 |
Cutting conditions: | Vc = 150 (m/min) fz = 0.3 ← 0.15 (mm/t) Vf = 1720 ← 573 (mm/min) ap = 4 ← 5 (mm) ae = 7 ← 5 (mm) Application: Shoulder milling Coolant: External supply Machine: Vertical M/C |

Example #3
Power Generation Industry
Part: | Turbine blade |
Material: | 13Cr-Mo stainless steel |
Cutter: | EXLN04M032C32.0R04 (ø32, z = 4) |
Insert: | LNMX0405R4-MJ |
Grade: | AH3135 |
Cutting conditions: | Vc = 220 (m/min) fz = 0.30 (mm/t) Vf = 2,626 (mm/min) ap = 1.0 (mm) Application: Profile milling Coolant: Dry Machine: Turning center |
