KORLOY TNMG160404-HM NC3120 Indexable CVD Coated Carbide Turning Inserts | TNMG331-HM (ANSI Equivalent) High-Performance Inserts for Steel Machining - 10pcs/box
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
✓ Global Shipping: Express 3–10 Days | Standard 5–15 Days
✓ Guaranteed Quality: 100% Compatibility | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
KORLOY TNMG160404-HM NC3120 Indexable Carbide Turning Inserts | TNMG331-HM (ANSI Equivalent) CVD Coated Inserts for Steel Machining - 10pcs/box
High-Performance ISO-Standard 60° Triangular Negative Indexable Turning Cutters Optimized for High-Reliability General Machining and Finishing of Carbon Steels and Alloy Steels
1. Product Overview
"Which indexable turning insert provides exceptional wear resistance and dependable chip evacuation when machining carbon and alloy steel components?" CNC machinists and manufacturing specialists repeatedly turn to the KORLOY TNMG160404-HM NC3120. This industrial-grade cutting insert pairs an advanced NC3120 CVD multi-layer coated carbide grade with a specialized -HM general medium-to-roughing chipbreaker, delivering high thermal stability, excellent crater wear resistance, and extended tool life. Featuring a 60° triangular negative geometry for economic multi-edge utilization and a tight 0.4mm corner radius, it guarantees strict dimensional control and smooth surface integrity in demanding steel turning operations.
2. Product Key Features
- NC3120 Advanced CVD Coated Grade: Combines a durable carbide substrate with a specialized thick CVD multilayer coating optimized for superior flank wear resistance, high thermal stability, and stable performance across diverse steel types.
- HM General Chipbreaker & 0.4mm Radius: Designed with a robust dual-stage groove geometry to control chip flow effectively across various feed rates while offering fine contouring capability with a 0.4mm corner radius.
- ISO Standard Compliance: Manufactured strictly according to international coding standards for secure mechanical clamping and dependable tool repeatability across multi-axis lathes.
- Standard Industrial Packaging: Supplied in protective factory boxes containing 10 pieces for straightforward inventory control and shop floor management.
3. Technical Specifications & Model Breakdown
Examine the comprehensive technical parameters, metric-imperial dimensional cross-references, and ISO nomenclature code breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | TNMG160404-HM | TNMG331-HM |
| Inscribed Circle (IC) | 9.525 mm | 0.375 in (3/8") |
| Insert Thickness (S) | 4.76 mm | 0.1875 in (3/16") |
| Corner Radius (r) | 0.4 mm | 0.0157 in |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Low Alloy Steels (e.g., C45, 4140) | 180 - 320 | 0.15 - 0.40 |
| Alloy Steels & High-Strength Structural Steels | 140 - 250 | 0.12 - 0.30 |
Need matching MTJNR, PTJNR, or WTJNR external turning toolholders for your TNMG 1604 inserts?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY TNMG160404-HM NC3120 insert excels across critical industrial sectors:
- Automotive Powertrain & Transmission: Machining forged steel drive shafts, gears, and structural coupling hubs.
- General Machinery & Industrial Equipment: Turning high-strength carbon steel rollers, spindles, and heavy-duty mechanical transmission components.
- Energy & Infrastructure: Manufacturing wind turbine components, hydraulic cylinders, and oilfield pipe connectors.
5. Compatibility
Designed to integrate seamlessly with standard ISO negative toolholding systems:
- Toolholders & Boring Bars: Fully compatible with MTJNR/L, PTJNR/L, and WTJNR/L external tool holders and internal boring bars configured for TNMG 1604 geometry.
- Machine Equipment: Optimized for CNC turning centers, CNC lathes, and heavy-duty automatic lathes.
6. Material Comparison & Workpiece Matrix
Review grade applicability across standard ISO workpiece classifications to ensure correct tool selection.
| ISO Material Category | Target Materials | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, and free-cutting steels | Outstanding (Optimized CVD Coated Grade for P15–P35 General Turning & Profiling) |
| K (Cast Iron) | Gray cast iron and ductile iron components | Moderate (Secondary application capability under steady cutting conditions) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: How many inserts are packaged in a single box?
A: Each standard factory box contains exactly 10 pieces of TNMG160404-HM NC3120 inserts.
Q: What makes the NC3120 grade ideal for steel turning?
A: NC3120 features a heavy-duty CVD multilayer coating engineered to provide high wear resistance and thermal stability when cutting carbon and alloy steels.
Q: Which tool holders fit this TNMG 1604 insert?
A: It fits any standard ISO negative turning tool holder or boring bar designed for TNMG 1604 inserts, such as MTJNR or PTJNR systems.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.