KORLOY TNMG160404-HM NC3020 Indexable CVD Coated Carbide Turning Inserts | TNMG331-HM (ANSI Equivalent) High-Performance Inserts for Steel and Alloy 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 TNMG160404-HM NC3020 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-Speed Continuous Machining and Precision Finishing of Carbon Steels and Alloy Steels
1. Product Overview
"Which indexable turning insert delivers exceptional wear resistance and superior surface finish during high-speed continuous cutting of carbon and alloy steel components?" CNC operators and manufacturing engineers frequently specify the KORLOY TNMG160404-HM NC3020. This industrial-grade cutting insert combines an advanced NC3020 CVD multi-layer coated wear-resistant carbide grade with a specialized -HM general medium-to-roughing chipbreaker, delivering excellent thermal deformation resistance, prolonged edge retention, and superior dimensional accuracy. Featuring a 60° triangular negative geometry for economic multi-edge utilization and a tight 0.4mm corner radius, it guarantees strict tolerance control and clean chip breaking in demanding production turning environments.
2. Product Key Features
- NC3020 Advanced CVD Coated Grade: Features a wear-resistant carbide substrate enhanced with a specialized thin-to-medium CVD multilayer coating optimized for high cutting speeds, superior crater wear resistance, and long tool life in stable steel turning.
- HM General Chipbreaker & 0.4mm Radius: Engineered with a versatile dual-stage groove geometry for effective chip control across medium feeds, coupled with a 0.4mm corner radius for fine contouring and accurate shoulder profiling.
- 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 - 350 | 0.15 - 0.35 |
| Alloy Steels & High-Strength Structural Steels | 150 - 280 | 0.12 - 0.28 |
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 NC3020 insert is engineered for precision industrial production:
- Automotive Component Manufacturing: High-speed finishing and semi-finishing of transmission shafts, drive axles, and forged steering components.
- General Precision Engineering: Continuous turning of carbon steel roller bearings, industrial fasteners, and hydraulic cylinder rods.
- Mold & Die Industry: Machining standard carbon steel mold bases, guide pins, and support plates requiring tight dimensional tolerances.
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 high-speed CNC turning centers, automatic lathes, and high-precision CNC lathes.
6. Material Comparison & Workpiece Matrix
Review grade applicability across standard ISO workpiece classifications to ensure correct tool selection.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, low alloy steels under stable high-speed conditions | Outstanding (High Wear Resistance CVD Grade Optimized for P10–P30 Continuous & High-Speed Turning) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (Recommended for stable finishing runs only; refer to specialized grades for heavy wet machining) |
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 NC3020 inserts.
Q: What is the main operational difference between NC3020 and NC3030 grades?
A: NC3020 is tailored for high-speed continuous turning with higher wear resistance, whereas NC3030 is optimized for general-to-roughing applications requiring higher toughness.
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
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.