KORLOY DNMG150608-HM NC3020 Indexable Carbide Turning Inserts | DNMG622-HM NC3020 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Roughing/Medium Machining - 10pcs/box
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KORLOY DNMG150608-HM NC3020 Indexable Carbide Turning Inserts | DNMG622-HM NC3020 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Roughing/Medium Machining - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3020 Advanced CVD Coated Carbide Substrate and -HM Robust Chipbreaker for Superior Steel, Alloy Steel, and Cast Iron Machining
1. Product Overview
"Which indexable turning insert is best suited for general steel and alloy roughing while offering exceptional edge toughness and reliable chip control?" Manufacturing engineers and CNC machinists frequently select the KORLOY DNMG150608-HM NC3020. This industrial-grade cutting tool combines KORLOY's versatile NC3020 multi-layer CVD coated carbide grade with a tough, broad -HM general machining chipbreaker geometry. Engineered on a robust 55° rhombic negative platform featuring an increased 6.35mm thickness (designated by '06') and a 0.8mm corner radius, it delivers superior wear resistance, high thermal stability, and consistent chip breakage during medium-to-heavy roughing operations on carbon steels, alloy steels, and various cast materials.
2. Product Key Features
- NC3020 Advanced CVD Grade: Engineered with a thick multi-layer chemical vapor deposition coating designed for general steel machining, providing excellent resistance to crater wear and plastic deformation at high cutting speeds.
- -HM Universal Chipbreaker & 0.8mm Radius: Features a double-sided geometry with a strong cutting edge for general roughing applications, paired with a robust 0.8mm corner radius to handle interrupted cuts and varying depth variations.
- Thicker 6.35mm Substrate Profile: The heavy-duty 6.35mm thickness ('06' designation) ensures maximum mechanical strength and resistance to shock under aggressive feed rates.
- Factory Sealed Box Packaging: Supplied in original KORLOY protective packaging containing 10 pieces for secure storage and inventory control.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical specifications, metric-to-imperial conversions, and ISO coding breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | DNMG150608-HM NC3020 | DNMG622-HM NC3020 |
| Inscribed Circle (IC) | 15.5 mm | 0.593 in (~19/32") |
| Insert Thickness (S) | 6.35 mm | 0.250 in (1/4") |
| 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 Steels & Alloy Steels (P Series) - Roughing/Medium | 180 - 320 | 0.15 - 0.45 |
| Cast Iron (K Series) - Roughing | 150 - 270 | 0.18 - 0.40 |
Need reliable external turning toolholders or boring bars designed for secure DNMG 1506 insert clamping?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY DNMG150608-HM NC3020 insert is tailored for robust industrial turning tasks:
- General Mechanical Engineering: Heavy roughing and contouring of forged steel shafts, drive axles, and industrial gear blanks.
- Automotive Powertrain: High-efficiency external turning of cast iron brake rotors, hubs, and transmission components.
- Energy & Infrastructure: Machining large structural steel components and oilfield tubular equipment.
5. Compatibility
Designed to fit standard ISO negative turning toolholder geometries:
- Toolholders: Fully compatible with ISO standard DDJNR/L, MDJNR/L, and PDJNR/L turning toolholders and internal boring bars configured for 1506 insert sizes.
- Machine Equipment: Suitable for heavy-duty CNC lathes, horizontal turning centers, and vertical lathe systems.
6. Material Comparison & Workpiece Matrix
Examine grade suitability across ISO workpiece material classifications for roughing and general machining.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, free-machining steel (C45, 4140, 4340) | Optimal (Primary CVD Grade P15–P35) |
| K (Cast Iron) | Gray cast iron, nodular cast iron (HT250, QT400) | Highly Effective (Secondary Application K15–K30) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch quality and peak machining performance.
Fast Global Logistics
Extensive stock ready for immediate dispatch via reliable international shipping networks to keep your production running smoothly.
Technical Expertise
Backed by professional tooling engineers ready to assist with cutting parameter optimization and application troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: How many inserts are included in one standard factory box?
A: Each original factory box contains exactly 10 pieces of DNMG150608-HM NC3020 inserts.
Q: What makes the -HM chipbreaker ideal for steel roughing?
A: The -HM geometry features a wide, robust groove design built to withstand high feed rates and heavy depths of cut without fracturing, making it perfect for general roughing and medium machining.
Q: Can NC3020 be used for stainless steel turning?
A: While NC3020 is primarily designed for carbon and alloy steels (P group) and cast iron (K group), PVD grades like KORLOY PC9030 are generally recommended for dedicated stainless steel machining.
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.