KORLOY DNMG150608-HM NC3120 Indexable Carbide Turning Inserts | DNMG622-HM NC3120 (ANSI Equivalent) Universal CVD Coated Carbide Inserts for Steel & Alloy Medium/Rough Machining - 10pcs/box
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KORLOY DNMG150608-HM NC3120 Indexable Carbide Turning Inserts | DNMG622-HM NC3120 (ANSI Equivalent) Universal CVD Coated Carbide Inserts for Steel & Alloy Medium/Rough Machining - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3120 Universal Balanced CVD Coated Substrate and -HM Robust Chipbreaker for Superior Steel, Alloy Steel, and Cast Iron Machining
1. Product Overview
"Which indexable turning insert provides the ideal balance of wear resistance and fracture toughness for general steel and alloy medium-to-rough machining?" Manufacturing engineers and CNC machinists frequently select the KORLOY DNMG150608-HM NC3120. This industrial-grade cutting tool combines KORLOY's universal balanced NC3120 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 thermal stability, reliable edge toughness, and consistent chip breakage during demanding turning operations across carbon steels, alloy steels, and various cast materials.
2. Product Key Features
- NC3120 Universal Balanced Grade: Engineered with a specialized multi-layer chemical vapor deposition coating designed for universal steel machining, offering an optimal combination of high wear resistance and fracture toughness.
- -HM Universal Chipbreaker & 0.8mm Radius: Features a double-sided geometry with a strong cutting edge for general roughing and medium machining applications, paired with a robust 0.8mm corner radius to handle 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 NC3120 | DNMG622-HM NC3120 |
| 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) - Medium/Roughing | 150 - 300 | 0.15 - 0.45 |
| Cast Iron (K Series) - Medium Machining | 140 - 250 | 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 NC3120 insert is tailored for versatile industrial turning tasks:
- General Mechanical Engineering: Medium and rough turning of forged steel shafts, structural components, and industrial gear blanks.
- Automotive Manufacturing: Reliable external turning of drivetrain parts, hubs, and steel components under variable cutting conditions.
- Energy & Equipment Maintenance: Machining high-strength steel tubing and general maintenance workpieces requiring enhanced fracture toughness.
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 CNC lathes, horizontal turning centers, and heavy-duty manual or automated lathe systems.
6. Material Comparison & Workpiece Matrix
Examine grade suitability across ISO workpiece material classifications for universal balanced machining.
| ISO Material Category | Target Materials | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, tool steel (C45, 4140, 4340) | Optimal (Universal Balanced CVD Grade P10–P30) |
| K (Cast Iron) | Gray cast iron, ductile 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 NC3120 inserts.
Q: What is the main difference between NC3020 and NC3120 grades?
A: While NC3020 prioritizes high wear resistance for stable, high-speed continuous steel cutting, NC3120 is engineered as a universal balanced grade providing a superior combination of fracture toughness and wear resistance for general and interrupted cutting conditions.
Q: Are these indexable inserts fully compliant with ISO and ANSI standards?
A: Yes, all KORLOY inserts are manufactured strictly adhering to international ISO and ANSI dimension and coding standards, ensuring seamless interchangeability in standard 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.