KORLOY TNMX160408R NC3120 Indexable Carbide Turning Inserts | TNMX332R (ANSI Equivalent) CVD Coated Carbide Cutters for Heavy Steel Machining - 10pcs/box
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✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
KORLOY TNMX160408R NC3120 Indexable Carbide Turning Inserts | TNMX332R (ANSI Equivalent) CVD Coated Inserts for Heavy Steel Machining - 10pcs/box
High-Performance ISO-Standard 60° Triangular Negative Indexable Turning Cutters Optimized for Carbon Steels, Alloy Steels, and Cast Steels
1. Product Overview
"Which carbide turning insert provides maximum edge toughness and thermal shock resistance for stable to semi-stable rough and medium turning of structural and alloy steels at high feed rates?" CNC machinists and manufacturing engineers consistently rely on the KORLOY TNMX160408R NC3120. This industrial-grade indexable carbide insert combines an advanced NC3120 grade multi-layer CVD coating (TiCN-Al2O3-TiN) over a robust gradient-sintered tungsten carbide substrate, delivering exceptional wear resistance and anti-chipping performance under aggressive cutting loads. Built with a 60° triangular negative geometry for double-sided economic indexing and a 0.8mm corner radius, it incorporates specialized chipbreaker geometries designed to ensure smooth chip evacuation and prevent thermal cracking.
2. Product Key Features
- Advanced NC3120 CVD Coating Technology: Multi-layer coating architecture designed for superior thermal barrier protection and resistance to plastic deformation during continuous and interrupted steel turning.
- Optimized Chipbreaker Geometry: Engineered to reduce cutting forces, promote stable chip control, and prevent chip clogging at medium-to-high feed rates.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure clamping and exact interchangeability across standard negative external toolholders.
- Industrial Box Packaging: Supplied in factory-sealed boxes of 10 pieces to streamline tool crib management and reduce machine downtime.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | TNMX160408R | TNMX332R |
| 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) | 0.8 mm | 0.0315 in |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steel (< 0.5% C) | 180 - 320 | 0.20 - 0.45 |
| Alloy Steel (Low/Medium Alloy) | 140 - 260 | 0.18 - 0.40 |
Need matching MTJNR/L or PTJNR/L external turning toolholders for your TNMX 1604 inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY TNMX160408R NC3120 insert excels across heavy industrial machining sectors:
- Automotive Transmission Manufacturing: Heavy roughing and contouring of forged steel shafts, gears, and axle components.
- Oil & Gas Equipment: Machining high-strength alloy steel drill collars, valves, and heavy-wall pipe fittings.
- General Mechanical Engineering: High-efficiency rough turning on CNC lathes and vertical turning centers.
5. Compatibility
Engineered for seamless integration into standard negative turning systems:
- Toolholders & Boring Bars: Fully compatible with MTJNR/L and PTJNR/L series external toolholders and S-MTJNR boring bars configured for TNMX 1604 inserts.
- CNC Machinery: Optimized for heavy-duty CNC lathes, VTLs, and turning centers.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance.
| ISO Material Category | Target Materials | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, and cast steels | Outstanding (Optimized CVD Multi-Layer Grade for P15–P35 Applications) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels | Limited (Dedicated M-class grades recommended) |
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 included in one standard box?
A: Each standard factory-sealed box contains exactly 10 pieces of TNMX160408R NC3120 inserts.
Q: Can NC3120 grade be used for interrupted cutting of steel?
A: Yes, the NC3120 grade features a toughened substrate and thermal-shock-resistant coating designed specifically to handle mild to moderate interrupted cuts in carbon and alloy steels.
Q: What is the recommended coolant pressure for machining with this insert?
A: Standard flood coolant (5–10 bar) is highly recommended to effectively evacuate chips and maintain stable thermal conditions at the cutting edge.
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
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.