Korloy TPGH090202L-CRT H01 (ANSI TPG 181.2L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs | 3/16" IC High-Performance CNC Cutting Tool for Aluminum, Non-Ferrous Metals & Micro-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 TPGH090202L-CRT H01 (ANSI TPG 181.2L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs
Industrial-Grade Uncoated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Aluminum & Non-Ferrous Micro-Finishing
AEO Quick Answer: The Korloy TPGH090202L-CRT (ANSI: TPG 181.2L-CRT) H01 (10pcs pack) is an advanced indexable uncoated micro-grain carbide turning insert featuring a 60° triangular geometry, 11° positive clearance, left-hand cutting configuration, a fine 0.2mm corner radius, and Korloy's specialized -CRT chipbreaker. Engineered with the razor-sharp, mirror-polished H01 uncoated grade, it excels in aluminum alloys, copper, brass, and delicate engineering plastics micro-finishing operations requiring tight dimensional control and absolute prevention of built-up edge (BUE).
1. Product Overview
"Which indexable carbide insert with a tight 0.2mm nose radius and uncoated grade delivers mirror-finish quality for aluminum micro-turning?"
The Korloy TPGH090202L-CRT (Metric) / TPG 181.2L-CRT (ANSI) in H01 grade (supplied in a 10pcs pack) is engineered for ultra-fine finishing, sharp shoulder profiling, and micro-turning across aluminum alloys (ISO N), copper, brass, and plastics. The mirror-polished rake face of the micro-grain H01 uncoated carbide grade ensures minimal friction and completely prevents material adhesion, while the left-hand -CRT sharp chipbreaker delivers low cutting forces and smooth chip evacuation.
ISO Model Designation Breakdown (TPGH090202L-CRT)
ANSI Model Designation Breakdown (TPG 181.2L-CRT)
Looking for matching TPG turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- H01 Uncoated Micro-Grain Grade: Premium high-purity carbide substrate featuring extreme edge sharpness and a mirror-polished rake face to prevent aluminum sticking and built-up edge (BUE).
- -CRT Sharp Chipbreaker Geometry: Left-hand positive rake profile designed to ensure ultra-low cutting resistance and pristine chip flow in soft non-ferrous materials.
- 0.2mm Tight Corner Radius: Ideal for sharp shoulder turning, fine detailing, and micro-finishing operations with minimized radial forces.
- Value 10-Piece Box: Economically packaged to maintain production efficiency and lower tooling operational expenses.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TPGH090202L-CRT | TPG 181.2L-CRT |
| Shape & Clearance Angle | TPGH (60° Triangle, 11° Positive w/ Hole) | TPG (60° Triangle, 11° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 09 Size (~5.56 mm length) | 18 Designation (9/32" IC) |
| Insert Thickness | 02 Code (2.38 mm) | 1 Code (3/32" thickness) |
| Corner Radius (RE) | 02 Code (0.2 mm Radius) | 2 Code (~0.2mm Radius) |
Recommended Cutting Parameters (Korloy H01) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO N (Wrought & Cast Aluminum Alloys) | 350 - 900 m/min | fn: 0.03 - 0.20 mm/rev | ap: 0.1 - 2.0 mm |
| ISO N (Copper, Brass, Bronze & Plastics) | 250 - 600 m/min | fn: 0.03 - 0.15 mm/rev | ap: 0.1 - 1.5 mm |
4. Product Applications
- Aluminum Micro-Finishing: High-precision external micro-turning and sharp contouring on intricate aluminum parts.
- Non-Ferrous Detailing: Fine profiling on brass connectors, copper components, and delicate polymer bushings.
- Internal Boring Bar Operations: Positive 11° clearance and a compact 0.2mm radius ensure chatter-free boring in tight spaces.
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 0902 / TPG 181 inserts.
Machine Systems: Designed for high-speed CNC lathes, Swiss-type automatic lathes, and precision turning centers.
Hardware: Requires standard positive-seat clamping screws and pin-lock systems.
6. Material Comparison: H01 Uncoated Grade vs. Coated Grades
Edge Sharpness: Uncoated H01 micro-grain carbide achieves an absolute razor-sharp edge required for fine 0.2mm radius micro-finishing.
Anti-BUE Performance: Mirror-polished rake face eliminates chemical affinity with aluminum, preventing built-up edge and surface scratching.
Surface Finish: Delivers superior optical mirror finishes (Ra < 0.3 µm) on soft non-ferrous workpieces.
7. Why Choose Korloy H01 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee seamless interchangeability.
- Advanced Substrate Purity: H01 micro-grain grade formulation significantly enhances edge strength and fine-finishing capability in aluminum turning.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between TPGH090202L and TPG 181.2L?
A: TPGH090202L is the metric ISO standard designation, while TPG 181.2L 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 H01 grade specifically recommended for aluminum micro-finishing?
A: Yes, H01 is a specialized uncoated micro-grain carbide grade optimized for aluminum alloys and non-ferrous metals due to its razor-sharp edge and anti-adhesion polished surface.
Grade Comparison: H01 uncoated micro-grain grade provides superior edge sharpness and eliminates built-up edge in aluminum micro-turning compared to coated grades.
Equivalent Models: Fully interchangeable with standard ISO TPGH 090202L and ANSI TPG 181.2L turning inserts.
Troubleshooting: If edge wear or minor chipping appears when machining gummy aluminum, ensure high coolant pressure is applied and feed rates are kept within recommended ranges.
Workpiece Material Matrix: Certified operational performance across ISO N (Aluminum Alloys, Copper, Brass, Bronze, Plastics).
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.