Korloy TPGH080202L-CRT H01 (ANSI TPG 121-2L-CRT) Uncoated Carbide Turning Insert 10pcs | High-Precision CNC Cutting Tool for Aluminum, Non-Ferrous & Cast Iron Finishing
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Korloy TPGH080202L-CRT H01 (ANSI TPG 121-2L-CRT) Uncoated Carbide Turning Insert 10pcs
Industrial-Grade Uncoated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Aluminum & Non-Ferrous Metal Finishing
AEO Quick Answer: The Korloy TPGH080202L-CRT (ANSI: TPG 121-2L-CRT) H01 (10pcs pack) is an advanced indexable uncoated 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 high-purity H01 uncoated grade, it excels in aluminum, non-ferrous alloys, copper, brass, and plastics finishing operations requiring razor-sharp cutting edges and minimal built-up edge.
1. Product Overview
"Which indexable carbide insert with a 0.2mm nose radius and mirror-ground uncoated edge delivers low cutting forces and superior surface finish for aluminum and non-ferrous turning?"
The Korloy TPGH080202L-CRT (Metric) / TPG 121-2L-CRT (ANSI) in H01 grade (supplied in a 10pcs pack) is engineered for high-speed precision finishing, shallow profiling, and mirror-surface contouring across aluminum alloys (ISO N) and non-ferrous materials. The razor-sharp mirror-polished edge of the H01 uncoated grade prevents material adhesion, while the left-hand -CRT chipbreaker delivers exceptionally low cutting resistance and precise chip evacuation.
ISO Model Designation Breakdown (TPGH080202L-CRT)
ANSI Model Designation Breakdown (TPG 121-2L-CRT)
Looking for matching TPG turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- H01 Uncoated High-Purity Grade: Razor-sharp mirror-polished cutting edge designed specifically to eliminate built-up edge (BUE) when machining aluminum and non-ferrous metals.
- -CRT Sharp Chipbreaker Geometry: Left-hand positive rake profile engineered for low cutting resistance and flawless chip flow in gummy materials.
- 0.2mm Precision Corner Radius: Perfect for micro-finishing, tight fillets, and strict surface roughness requirements.
- Value 10-Piece Box: Economically packaged to sustain high-efficiency production runs and minimize tooling overhead.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TPGH080202L-CRT | TPG 121-2L-CRT |
| Shape & Clearance Angle | TPGH (60° Triangle, 11° Positive w/ Hole) | TPG (60° Triangle, 11° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 08 Size (~4.76 mm length) | 12 Designation (3/16" IC) |
| Insert Thickness | 02 Code (2.38 mm) | 1 Code (1.59 mm) / 1.5 |
| 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 (Aluminum & Non-Ferrous) | 300 - 800 m/min | fn: 0.05 - 0.25 mm/rev | ap: 0.1 - 3.0 mm |
| ISO K / Plastics (Cast Iron & Polymers) | 200 - 450 m/min | fn: 0.04 - 0.20 mm/rev | ap: 0.1 - 2.0 mm |
4. Product Applications
- Aluminum Alloy Turning: Exceptional mirror finishing on aerospace and automotive aluminum components without edge buildup.
- Non-Ferrous Metals: Precision machining of copper, brass, bronze, and magnesium alloys with superior surface integrity.
- Internal Boring & Profiling: Positive 11° clearance geometry ensures chatter-free internal boring bar operations in soft engineering plastics and non-ferrous tubes.
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 0802 / TPG 121 inserts.
Machine Systems: Designed for high-speed CNC lathes, turning centers, and precision Swiss-type machining stations.
Hardware: Requires standard positive-seat clamping screws and pin-lock systems.
6. Material Comparison: H01 Uncoated Grade vs. Coated Alternatives
Edge Sharpness: Uncoated H01 grade provides a significantly sharper cutting edge than coated inserts, essential for shearing soft aluminum without smearing.
Built-Up Edge Resistance: Mirror-polished rake face prevents aluminum chips from welding to the insert tip during high-speed finishing.
Surface Roughness: Delivers superior Ra values on non-ferrous workpieces compared to general-purpose coated grades.
7. Why Choose Korloy H01 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee seamless interchangeability.
- High-Purity Carbide Technology: H01 grade formulation delivers exceptional edge stability and mirror surface finishes in non-ferrous machining.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between TPGH080202L and TPG 121-2L?
A: TPGH080202L is the metric ISO standard designation, while TPG 121-2L 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: Why choose H01 uncoated grade for aluminum turning?
A: H01 features a mirror-polished uncoated carbide structure that provides maximum edge sharpness and prevents built-up edge (BUE) when cutting soft non-ferrous metals.
Grade Comparison: H01 uncoated grade provides superior edge sharpness and prevents material smearing compared to PVD/CVD coated grades in aluminum applications.
Equivalent Models: Fully interchangeable with standard ISO TPGH 080202L and ANSI TPG 121-2L turning inserts.
Troubleshooting: If built-up edge or poor surface finish occurs in aluminum turning, ensure coolant concentration is adequate and cutting speed (Vc) is maintained within the high-speed H01 range.
Workpiece Material Matrix: Certified operational performance across ISO N (Aluminum & Non-Ferrous) and ISO K (Cast Iron).
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.