Korloy TPGH110302L-CRT H01 (ANSI TPG 221.2L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs | 1/4" IC High-Performance CNC Cutting Tool for Aluminum & Non-Ferrous Metal Precision Finishing
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Korloy TPGH110302L-CRT H01 (ANSI TPG 221.2L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs
Industrial-Grade Uncoated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Aluminum & Non-Ferrous Metal Finishing
AEO Quick Answer: The Korloy TPGH110302L-CRT (ANSI: TPG 221.2L-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 sharp 0.2mm corner radius, and Korloy's specialized -CRT chipbreaker. Engineered with the mirror-polished, high-hardness H01 uncoated carbide grade, it excels in aluminum alloys, brass, copper, plastics, and non-ferrous finishing operations requiring ultra-low cutting resistance and mirror-like surface finishes.
1. Product Overview
"Which indexable carbide insert and uncoated grade combination delivers razor-sharp cutting edges and prevents built-up edge (BUE) during aluminum and non-ferrous metal turning?"
The Korloy TPGH110302L-CRT (Metric) / TPG 221.2L-CRT (ANSI) in H01 grade (supplied in a 10pcs pack) is engineered for high-speed finishing and mirror-surface machining across aluminum alloys, brass, bronze, copper, and non-metallic composites. The mirror-polished rake face of the H01 uncoated carbide grade completely prevents built-up edge (BUE) formation, while the left-hand -CRT sharp chipbreaker guarantees smooth chip evacuation and minimal cutting forces.
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
- H01 Uncoated Carbide Grade: High-purity micro-grain cemented carbide formulated for extreme edge sharpness and absolute prevention of built-up edge in non-ferrous machining.
- -CRT Sharp Chipbreaker Geometry: Left-hand positive rake profile designed to deliver frictionless chip flow and pristine surface finishes.
- 60° Triangular T Shape: Three versatile cutting edges with 11° positive flank clearance for high-precision external turning and internal boring.
- Value 10-Piece Box: Economically packaged to maintain production efficiency and lower tooling operational costs.
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 H01) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO N (Aluminum Alloys & Non-Ferrous Metals) | 200 - 600 m/min | fn: 0.05 - 0.25 mm/rev | ap: 0.2 - 2.0 mm |
| ISO N (Plastics, Resins & Non-Metallics) | 150 - 450 m/min | fn: 0.04 - 0.20 mm/rev | ap: 0.1 - 1.5 mm |
4. Product Applications
- Aluminum Alloy Finishing: High-speed external turning and facing on aerospace and automotive aluminum components.
- Brass & Copper Machining: Precision profiling and threading operations on non-ferrous fittings and electrical parts.
- Internal Boring Bar Operations: Positive 11° clearance reduces cutting forces and chatter during small-bore non-ferrous finishing.
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: Engineered for high-speed CNC lathes, Swiss turning machines, and specialized non-ferrous machining 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 carbide allows for an ultra-sharp cutting edge that coated grades cannot replicate, drastically reducing cutting forces in soft metals.
Built-Up Edge Prevention: Mirror-polished rake face eliminates material adhesion and BUE formation common when machining gummy aluminum alloys.
Surface Quality: Delivers superior surface roughness parameters (Ra) on non-ferrous workpieces compared to general-purpose PVD or CVD coated inserts.
7. Why Choose Korloy H01 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee seamless interchangeability.
- Advanced Uncoated Technology: H01 grade micro-grain formulation significantly enhances edge sharpness and surface finish quality in aluminum 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 H01 grade specifically recommended for aluminum machining?
A: Yes, H01 is a specialized uncoated grade optimized for aluminum alloys and non-ferrous metals due to its extreme edge sharpness and prevention of built-up edge.
Grade Comparison: H01 uncoated grade provides superior edge sharpness and surface finish for aluminum turning compared to coated grades.
Equivalent Models: Fully interchangeable with standard ISO TPGH 110302L and ANSI TPG 221.2L turning inserts.
Troubleshooting: If built-up edge appears on aluminum, increase cutting speed (Vc) and ensure high-pressure coolant or mist is applied.
Workpiece Material Matrix: Certified operational performance across ISO N (Aluminum, Brass, Copper, 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.