Pramet CNMG120408-RP T5010 MT-CVD Coated 80° Rhombic Negative Turning Insert R0.8 CNMG432-RP For Carbon Alloy Steel Heavy Rough & Semi-Finish CNC Lathe Machining CNC Tools
Product Overview
CNMG120408-RP (short mark CNMG432-RP) T5010 is a double-sided negative rhombic turning insert developed by Pramet for medium & heavy rough turning of steel materials. Equipped with RP wide-groove heavy rough chipbreaker and reinforced R0.8 cutting corner, each insert owns 4 usable cutting edges to reduce production cost. Adopting T5010 high wear-resistant MT-CVD coating substrate, it matches MCLNR series standard external turning tool holders, supports large depth of cut and high feed rate continuous turning. Widely applied on CNC lathes and automatic turning machines for automotive, hydraulic, mold and general machinery metal mass processing.
Key Features
- Double-sided negative 80° rhombic structure, four usable cutting edges, higher cost efficiency than single-sided inserts
- RP special heavy rough chipbreaker design, ultra-wide chip groove space, splits long steel chips into small curled fragments without winding
- T5010 three-layer MT-CVD composite coating, excellent high temperature oxidation resistance, effectively slow down flank and crater wear
- Submicron grain carbide substrate, balanced hardness and impact toughness, anti-edge chipping under medium slight interrupted forging cutting
- Dual international standard naming (metric CNMG120408 / inch shorthand CNMG432-RP), convenient for global customer order inquiry and inventory management
- Precise positioning hole structure, high repeat indexing accuracy after edge replacement, stable machining dimensional tolerance
- Multi-scene adaptability, covers outer circle heavy rough turning, end face cutting and semi-finishing of solid steel shaft parts
Technical Specifications
| Parameter | Value |
|---|---|
| Full Metric Model | CNMG120408-RP T5010 |
| Short Imperial Model | CNMG432-RP T5010 |
| Brand | Pramet (Dormer Pramet Europe) |
| Insert Shape | 80° Rhombic Diamond |
| Rake Angle | 0° Negative Rake |
| Inscribed Circle Diameter | 12.7mm |
| Insert Thickness | 4.76mm |
| Cutting Corner Radius | R0.8mm |
| Chipbreaker Geometry | RP Heavy Rough Wide Groove |
| Coating Technology | MT-CVD Multi-Layer TiCN-Al₂O₃-TiN Coating |
| Material Grade | T5010 Steel Special Hard Alloy |
| Matching Tool Holder | MCLNR12 / MCLNL12 External Turning Bar |
| Compatible Equipment | CNC lathe, horizontal automatic lathe, heavy-duty economical turning machine |
| Recommended Machining Type | Medium roughing, semi-finishing, slight interrupted forging turning |
Applicable Workpiece Materials
- Mild carbon steel
- 45# structural steel
- alloy steel
- pre-hardened mold steel
- forged steel
- low alloy cast steel
Typical Applications
- Machining Processes
- Outer circle heavy rough turning
- end face heavy cutting
- semi-finishing turning
- slight interrupted forged blank machining
- Industrial Workpieces
- Automotive industry: transmission solid shaft rough turning, engine chassis structural fittings batch processing
- Hydraulic & pneumatic industry: large valve body outer circle semi-finishing, thick pipe joint heavy cutting
- Mold manufacturing: mold base steel plate positioning shaft rough machining, mold accessory steel component turning
- General machinery: gear blank, thick wall bushing, heavy equipment frame structural parts mass production
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