MVUNR/l TOOL HOLDER with 95° Angle for Versatile Turning
- Tool Type: External Turning Tool Holder (Profiling & Facing)
- Model Series: MVUNR/L (Right & Left Hand)
- Entering Angle: 95° Entering Angle (-5° Lead Angle)
- Clamping System: M-Type Double Clamp (Pin & Top Clamp)
- Insert Compatibility: VNMG, VNMA, VNMM (35° Diamond Inserts)
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Key Application: Profiling, facing, and turning with enhanced clearance.
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Overview
The MVUNR/L series is a high-performance external turning tool holder designed to maximize versatility in CNC profiling. Distinguished by its specific 95° entering angle, the MVUNR provides excellent clearance for facing operations while maintaining the ability to trace complex contours. This geometry effectively directs cutting forces along the axis, ensuring stable machining on various workpiece materials.
Optimized for VNMG Inserts
This holder is engineered to seat VNMG inserts (35° Diamond). The combination of the sharp 35° insert and the 95° holder geometry creates a powerful tool for semi-finishing and finishing. It allows machinists to execute facing cuts and turn square shoulders seamlessly using standard MVUNR 2525 or precise MVUNR 2020K16 sizes.
Rigid M-Type Stability
To handle the cutting forces generated at a 95° angle, the MVUNR TOOL HOLDER utilizes the robust M-Type Double Clamping System. The lock pin and top clamp firmly secure the slender VNMG insert, preventing vibration and ensuring high surface quality during deep profiling or facing cuts.
ISO Code Naming Rules
Here is the technical breakdown of the MVUNR code, corrected to reflect your specific 95° geometry:
| Position | Code | Parameter | Description & Technical Advantage |
| 1st | M | Clamping Method |
Multi-lock (Double Clamp): Uses pin & top clamp. • Benefit: Critical for holding the 35° insert stable. |
| 2nd | V | Insert Shape |
35° Diamond: Fits VNMG inserts. • Benefit: Sharpest standard geometry for detailing and finishing. |
| 3rd | U | Holder Style |
95° Entering Angle: (-5° Lead Angle). • Benefit: Provides optimized clearance for facing and profiling compared to standard 93° tools. |
| 4th | N | Clearance Angle |
Negative (0°): Insert sits perpendicular. • Benefit: Economical 4-edge solution (Double-sided). |
| 5th | R/L | Hand of Tool |
Right (R) / Left (L): Direction of cut. • Benefit: Select based on profiling path. |
FAQs
Q1: What is the benefit of the 95° angle on the MVUNR?
A: The 95° entering angle allows the tool to perform facing operations with better clearance than a 93° tool. It creates a -5° lead angle, which directs the cutting forces more axially, often resulting in less radial chatter on slender parts.
Q2: Can I use MVUNR 2525 for both facing and turning?
A: Yes. The MVUNR 2525 is highly versatile. Its 95° angle makes it perfect for “Facing and Turning” (pulling the tool across the face and then turning the diameter) in a single setup without changing tools.
Q3: Does it use standard VNMG inserts?
A: Yes, the MVUNR TOOL HOLDER is compatible with standard ISO VNMG inserts (like VNMG 1604). You can use the same inserts as your MVJNR or MVQNR holders, reducing inventory costs.
Specifications
| MODEL | SIZE(MM) | INSERT | SHIM | CENTER PIN | WRENCH | PLATEN | DOUBLE SCREW | WRENCH | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LEFT | RIGHT | h | b | H | F | L | |||||||
| MVUNL1616K16 | MVUNR1616K16 | 16 | 16 | 16 | 29 | 125 | VN□□1604□□ | MV1603 | CTM513 | L2 | HL1813 | ML0625 | L3 |
| MVUNL2020K16 | MVUNR2020K16 | 20 | 20 | 20 | 30 | 125 | VN□□1604□□ | ||||||
| MVUNL2525M16 | MVUNR2525M16 | 25 | 25 | 25 | 34 | 150 | VN□□1604□□ | ||||||
| MVUNL3232P16 | MVUNR3232P16 | 32 | 32 | 32 | 40 | 170 | VN□□1604□□ |
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