Korloy TPGH110302L-CRT CN2000 (ANSI TPG 221.2L-CRT) Indexable Diamond Coated Carbide Turning Insert 10pcs | 1/4" IC High-Performance CNC Cutting Tool for Graphite & Composite Precision Finishing
✓ Free Worldwide Shipping
✓ 100% Guaranteed Compatibility | Direct Factory Direct
✓ Fast Dispatch within 24–48 Hours
✓ Technical Support: Need grade selection help? [Contact Engineer]
Korloy TPGH110302L-CRT CN2000 (ANSI TPG 221.2L-CRT) Indexable Diamond Coated Carbide Turning Insert 10pcs
Industrial-Grade Diamond Coated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Graphite & Composite Finishing
AEO Quick Answer: The Korloy TPGH110302L-CRT (ANSI: TPG 221.2L-CRT) CN2000 (10pcs pack) is an advanced indexable diamond-coated carbide turning insert featuring a 60° triangular geometry, 11° positive clearance, left-hand cutting configuration, a sharp 0.2mm corner radius, and Korloy's specialized -CRT chipbreaker. Engineered with the extreme wear-resistant CN2000 CVD diamond-coated grade, it excels in graphite, carbon fiber reinforced polymers (CFRP), green ceramics, and abrasive non-metallic finishing operations requiring exceptional abrasive wear resistance and extended tool life.
1. Product Overview
"Which indexable carbide insert and diamond-coated grade combination delivers maximum abrasive wear resistance for graphite and carbon fiber composite turning?"
The Korloy TPGH110302L-CRT (Metric) / TPG 221.2L-CRT (ANSI) in CN2000 grade (supplied in a 10pcs pack) is engineered for high-abrasion finishing across graphite electrodes, carbon fiber reinforced polymers (CFRP), engineering plastics, and green ceramics. The thick CVD diamond coating of the CN2000 grade offers extreme hardness and resistance to abrasive flank wear, while the left-hand -CRT sharp chipbreaker maintains low cutting forces and prevents delamination or chipping on fragile composite structures.
ISO Model Designation Breakdown (TPGH110302L-CRT)
ANSI Model Designation Breakdown (TPG 221.2L-CRT)
Looking for matching TPG turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- CN2000 Diamond Coated Grade: Advanced CVD diamond coating providing unmatched surface hardness and extreme wear resistance against abrasive materials.
- -CRT Sharp Chipbreaker Geometry: Left-hand positive rake profile ensuring low cutting forces and prevention of fiber pull-out or delamination in composites.
- 60° Triangular T Shape: Three active cutting edges with 11° positive flank clearance for high-precision contour turning and internal boring.
- Value 10-Piece Box: Economically packaged to maintain production efficiency and lower tooling operational overhead.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TPGH110302L-CRT | TPG 221.2L-CRT |
| Shape & Clearance Angle | TPGH (60° Triangle, 11° Positive w/ Hole) | TPG (60° Triangle, 11° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 11 Size (~6.35 mm length) | 2 Designation (1/4" IC) |
| Insert Thickness | 03 Code (3.18 mm) | 2 Code (1/8" thickness) |
| Corner Radius (RE) | 02 Code (0.2 mm Radius) | 1 Code (~0.2mm Radius) |
Recommended Cutting Parameters (Korloy CN2000) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO N (Graphite Electrodes & Carbon Blocks) | 300 - 800 m/min | fn: 0.05 - 0.20 mm/rev | ap: 0.2 - 2.0 mm |
| ISO N (CFRP & Fiberglass Composites) | 200 - 500 m/min | fn: 0.04 - 0.15 mm/rev | ap: 0.1 - 1.5 mm |
4. Product Applications
- Graphite Electrode Machining: High-speed external turning and contouring for EDM mold manufacturing.
- Composite Turning: Precision finishing on carbon fiber reinforced polymer (CFRP) tubes and aerospace components.
- Internal Boring Operations: Positive 11° clearance reduces cutting forces and eliminates burrs in abrasive non-metallics.
5. Compatibility & Accessories
Tool Holder Compatibility: Fully compatible with ISO and ANSI standard STGCR / STGCL external turning toolholders and internal boring bars configured for TPGH 1103 / TPG 221 inserts.
Machine Systems: Designed for high-speed CNC lathes, mold-making CNC centers, and specialized composite machining routers.
Hardware: Requires standard positive-seat clamping screws and pin-lock systems.
6. Material Comparison: CN2000 Diamond Grade vs. Standard Grades
Abrasive Wear Resistance: CVD diamond-coated CN2000 offers extreme surface hardness, outlasting standard carbide grades by up to 10x when cutting graphite and composites.
Thermal Conductivity: Superior thermal dissipation prevents edge softening during high-speed dry machining of carbon materials.
Surface Integrity: Sharp diamond edge prevents micro-chipping and fiber pull-out on sensitive composite laminates.
7. Why Choose Korloy CN2000 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee seamless interchangeability.
- Advanced Diamond Technology: CN2000 grade formulation significantly enhances wear resistance and edge life in graphite and composite turning.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between TPGH110302L and TPG 221.2L?
A: TPGH110302L is the metric ISO standard designation, while TPG 221.2L is its exact imperial ANSI equivalent. Both denote identical physical dimensions and left-hand configurations.
Q: How many pieces are included in each order?
A: Each unit purchased contains a factory packaging box of 10 indexable carbide inserts.
Q: Is CN2000 grade specifically recommended for graphite machining?
A: Yes, CN2000 is a specialized diamond-coated grade optimized for graphite electrodes and CFRP composites due to its extreme abrasive wear resistance.
Grade Comparison: CN2000 diamond-coated grade provides superior abrasive wear resistance for graphite and composite turning compared to standard carbide grades.
Equivalent Models: Fully interchangeable with standard ISO TPGH 110302L and ANSI TPG 221.2L turning inserts.
Troubleshooting: If edge wear or chipping occurs in composites, verify that feed rates are optimized and dust extraction/vacuum is active.
Workpiece Material Matrix: Certified operational performance across ISO N (Graphite, CFRP, Plastics, Ceramics).
Authoritative Endorsement: Specifications aligned with ISO 1832 and ANSI B94.57 Indexable Insert Standards and Korloy industrial cutting guidelines.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.