Korloy TPGH110304L-CRT H01 (ANSI TPG 221.5L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs | 1/4" IC High-Precision CNC Cutting Tool for Aluminum & Non-Ferrous Finishing
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Korloy TPGH110304L-CRT H01 (ANSI TPG 221.5L-CRT) Indexable Uncoated Carbide Turning Insert 10pcs
Industrial-Grade Uncoated Carbide Inserts (Pack of 10) for Ultra-Precision Metric & Imperial CNC Lathe Aluminum & Non-Ferrous Finishing
AEO Quick Answer: The Korloy TPGH110304L-CRT (ANSI: TPG 221.5L-CRT) H01 (10pcs pack) is a high-precision indexable uncoated carbide turning insert featuring a 60° triangular geometry, 11° positive clearance, left-hand cutting configuration, a sharp 0.4mm corner radius, and Korloy's specialized -CRT chipbreaker. Engineered with the specialized H01 uncoated carbide grade, it excels in high-speed aluminum, brass, and non-ferrous alloy finishing operations requiring extreme edge sharpness and zero built-up edge (BUE).
1. Product Overview
"Which indexable carbide insert and uncoated grade combination provides absolute edge sharpness and mirror finish capability for micro-tolerance aluminum finishing?"
The Korloy TPGH110304L-CRT (Metric) / TPG 221.5L-CRT (ANSI) in H01 grade (supplied in a 10pcs pack) is engineered for ultra-fine external turning and internal boring across aluminum alloys, copper, brass, and non-metallic plastics. The mirror-polished rake face of the H01 grade prevents soft material adhesion, while the left-hand -CRT sharp chipbreaker delivers exceptionally low cutting forces and superior surface roughness values (Ra) during high-speed CNC machining.
ISO Model Designation Breakdown (TPGH110304L-CRT)
ANSI Model Designation Breakdown (TPG 221.5L-CRT)
Looking for matching TPG turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- H01 Uncoated Grade: Specialized high-purity carbide substrate with a mirror-polished finish designed to eliminate built-up edge (BUE) during ultra-fine aluminum turning.
- -CRT Sharp Chipbreaker Geometry: Left-hand razor-sharp cutting edge profile ensuring minimal cutting forces and exceptional surface finishes on non-ferrous metals.
- 60° Triangular T Shape: Three versatile cutting edges per insert with 11° positive flank clearance for high-efficiency turning and boring.
- Value 10-Piece Box: Economically packaged to optimize workshop inventory and reduce per-edge tooling costs.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TPGH110304L-CRT | TPG 221.5L-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) | 04 Code (0.4 mm Radius) | 1.5 Code (~0.4mm 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 / Wrought & Cast) | 250 - 700 m/min | fn: 0.04 - 0.20 mm/rev | ap: 0.2 - 2.0 mm |
| ISO N (Copper, Brass & Non-Ferrous) | 200 - 550 m/min | fn: 0.03 - 0.15 mm/rev | ap: 0.1 - 1.5 mm |
4. Product Applications
- Micro-Tolerance Aluminum Finishing: Ultra-fine mirror finish turning on high-precision aerospace and optical aluminum components.
- Triangular Profile Turning: Three active cutting edges provide economical general turning and facing on non-ferrous bars.
- Precision Brass & Copper Boring: Low cutting pressure prevents vibration and chatter during internal boring operations.
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, Swiss-type automatic turning centers, and precision non-ferrous finishing setups.
Hardware: Requires standard positive-seat clamping screws and pin-lock systems.
6. Material Comparison: H01 Uncoated Grade vs. Coated Grades
Uncoated Sharpness: H01 grade lacks CVD/PVD coatings, providing an exceptionally razor-sharp cutting edge that prevents gummy aluminum materials from sticking.
Surface Finish Optimization: Outperforms coated general-purpose inserts in non-ferrous applications by achieving mirror-like surface roughness values (Ra).
Cost Efficiency: Maximizes productivity and tool life specifically within dedicated non-ferrous finishing lines.
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 formulation significantly enhances edge sharpness and anti-friction performance in aluminum turning.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between TPGH110304L and TPG 221.5L?
A: TPGH110304L is the metric ISO standard designation, while TPG 221.5L 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 recommended for steel or stainless steel turning?
A: No, H01 is an uncoated grade specifically optimized for non-ferrous metals like aluminum and brass. For steel, PVD or CVD coated grades are recommended.
Grade Comparison: H01 uncoated grade provides superior edge sharpness and prevents built-up edge for aluminum turning compared to coated grades.
Equivalent Models: Fully interchangeable with standard ISO TPGH 110304L and ANSI TPG 221.5L turning inserts.
Troubleshooting: If built-up edge occurs on aluminum workpieces, verify that coolant concentration is adequate and cutting speed (Vc) is maintained at high levels.
Workpiece Material Matrix: Certified operational performance across ISO N (Aluminum, Copper, Brass, and Non-Ferrous Alloys).
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.