KORLOY DNMG150408-HM NC3120 Indexable Carbide Turning Inserts | DNMG432-HM NC3120 (ANSI Equivalent) CVD Coated Carbide Inserts for Steel Machining - 10pcs/box
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KORLOY DNMG150408-HM NC3120 Indexable Carbide Turning Inserts | DNMG432-HM NC3120 (ANSI Equivalent) CVD Coated Carbide Inserts for Steel Machining - 10pcs/box
High-Precision ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring KORLOY NC3120 CVD Coated Carbide Substrate and -HM General-Purpose Chipbreaker for Superior Wear Resistance, Edge Toughness, and Stable Performance in Carbon Steel and Alloy Steel Machining
1. Product Overview
"Which indexable turning insert offers optimal wear resistance and stable chip control for general-purpose medium-to-rough turning of carbon and alloy steels?" Professional machinists and CNC programmers frequently turn to the KORLOY DNMG150408-HM NC3120. This industrial-grade turning insert pairs KORLOY's versatile NC3120 CVD multi-layer coated carbide grade with a robust -HM general-purpose chipbreaker geometry. Engineered with a 55° rhombic negative layout, a 15mm cutting edge length, a 4.76mm thickness ('04'), and an 0.8mm corner radius, it delivers balanced toughness and thermal wear resistance, ensuring dependable productivity and predictable tool life across diverse steel turning applications.
2. Product Key Features
- NC3120 CVD Coated Grade: Designed with an advanced chemical vapor deposition (CVD) multi-layer coating optimized to resist flank wear, crater wear, and thermal deformation in steel under demanding conditions.
- -HM General-Purpose Geometry: Features a robust positive-land cutting edge design tailored for medium turning, providing secure chip control across a wide range of feeds and depths of cut.
- 55° Rhombic Versatility: The acute 55-degree apex angle provides exceptional tool clearance for complex profiling, contouring, and multi-directional turning operations.
- Factory Sealed Packaging: Delivered in genuine KORLOY containers containing 10 premium indexable inserts.
3. Technical Specifications & Model Breakdown
Examine the technical parameters, metric-to-imperial equivalents, and ISO coding designation breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | DNMG150408-HM NC3120 | DNMG432-HM NC3120 |
| Cutting Edge Length / IC Size | 15 mm nominal | 1/2" inscribed circle class |
| Insert Thickness (S) | 4.76 mm | 0.1875 in (3/16") |
| Corner Radius (r) | 0.8 mm | 0.0315 in (~1/32") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steel & Alloy Steel (P Series) | 170 - 300 | 0.15 - 0.45 |
| Cast Steel & Low Alloy Steel | 140 - 260 | 0.15 - 0.40 |
Need rigid external turning toolholders or boring bars configured for secure DNMG 1504 insert mounting?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY DNMG150408-HM NC3120 insert is engineered for general steel turning operations:
- General Mechanical Engineering: Medium roughing and finishing cuts on carbon steel shafts, gears, and structural components.
- Automotive Powertrain Components: High-efficiency external turning on forged alloy steel transmission and engine shafts.
- Industrial Roller & Valve Manufacturing: Continuous and light interrupted turning on heavy-duty steel cylinders and industrial valves.
5. Compatibility
Designed to integrate perfectly with standard ISO negative turning toolholders:
- Toolholders: Fully compatible with ISO standard DDJNR/L, PDJNR/L, and MDJNR/L external turning toolholders and boring bars built for 1504 negative inserts.
- Machine Equipment: Ideal for conventional CNC lathes, heavy-duty turning centers, and automated manufacturing lines.
6. Material Comparison & Workpiece Matrix
Review CVD coated grade application performance across ISO workpiece material categories.
| ISO Material Category | Target Materials | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, and structural steel (P10–P35) | Optimal (Enhanced Toughness & Wear Resistance for Steel) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels (M10–M25) | Suitable (Good Thermal Stability & Edge Integrity) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch quality and dependable carbide cutting performance.
Fast Global Logistics
Comprehensive inventory prepared for immediate dispatch through established international logistics networks to prevent shop downtime.
Technical Expertise
Supported by experienced tooling specialists ready to assist with feed/speed optimization and process troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: How many indexable inserts are included in each standard factory box?
A: Each original factory box contains exactly 10 pieces of DNMG150408-HM NC3120 inserts.
Q: What specific applications is the NC3120 grade best suited for?
A: NC3120 is an advanced CVD coated grade optimized for general-purpose turning of carbon and alloy steels, offering superior toughness and thermal resistance under varying cutting conditions.
Q: Are these inserts compliant with standard ISO and ANSI toolholding specifications?
A: Yes, they are manufactured strictly to ISO 1832 standards, ensuring total interchangeability with standard negative turning toolholders.
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.