KORLOY DNMG110404-HM NC3220 Indexable Carbide Turning Inserts | DNMG331-HM NC3220 (ANSI Equivalent) CVD Coated Carbide Inserts for High-Speed Steel & Alloy Steel Finishing - 10pcs/box
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KORLOY DNMG110404-HM NC3220 Indexable Carbide Turning Inserts | DNMG331-HM NC3220 (ANSI Equivalent) CVD Coated Carbide Inserts for High-Speed Steel & Alloy Steel Finishing - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3220 High-Speed CVD Coated Substrate and -HM Chipbreaker for Superior Carbon Steel and Alloy Steel Machining
1. Product Overview
"Which indexable turning insert delivers maximum wear resistance and stable chip control during high-speed finishing and semi-finishing of carbon and alloy steels?" Manufacturing engineers and CNC programmers consistently select the KORLOY DNMG110404-HM NC3220. This industrial-grade cutting insert combines KORLOY's advanced NC3220 multi-layer CVD coated carbide grade with a precision-engineered double-sided positive -HM chipbreaker geometry. Built upon a 55° rhombic negative platform featuring a 4.76mm thickness ('04') and a 0.4mm corner radius, it provides exceptional thermal stability, excellent crater wear resistance, and reliable chip evacuation at elevated cutting speeds.
2. Product Key Features
- NC3220 High-Speed CVD Grade: Engineered with a specialized multi-layer CVD coating optimized for high cutting speeds and extended tool life in steel turning applications.
- -HM Chipbreaker & 0.4mm Radius: Features a versatile groove design tailored for smooth chip flow across various feed rates, paired with a 0.4mm corner radius for accurate contouring and fine finishes.
- Robust 4.76mm Thickness: Standardized '04' thickness delivers high structural rigidity and edge strength under continuous cutting conditions.
- Factory Sealed Box Packaging: Delivered in original KORLOY protective packaging containing 10 precision indexable inserts.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical specifications, 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 | DNMG110404-HM NC3220 | DNMG331-HM NC3220 |
| Inscribed Circle (IC) | 11.6 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 (~3/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Alloy Steels (P Series) - High-Speed Finishing | 180 - 320 | 0.08 - 0.30 |
| Alloy Steels & Tool Steels (P Series) - Semi-Finishing | 150 - 270 | 0.10 - 0.32 |
Looking for dependable external turning toolholders or boring bars engineered for secure DNMG 1104 insert clamping?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY DNMG110404-HM NC3220 insert is optimized for high-speed industrial turning environments:
- Automotive Powertrain Manufacturing: High-speed finishing of transmission shafts, axle components, and forged steel parts.
- Precision Engineering & Machinery: Continuous turning and close-tolerance profiling of alloy steel machine spindles.
- High-Volume Production Lines: Long-run component manufacturing where enhanced thermal resistance reduces cycle times.
5. Compatibility
Designed to fit standard ISO negative turning toolholder configurations:
- Toolholders: Fully compatible with ISO standard DDJNR/L, MDJNR/L, and PDJNR/L external turning toolholders and boring bars built for 1104 insert geometries.
- Machine Equipment: Ideal for high-speed CNC lathes, multi-axis turning centers, and automated production cells.
6. Material Comparison & Workpiece Matrix
Review grade suitability across ISO workpiece material classifications for high-speed steel turning operations.
| ISO Material Category | Target Materials | NC3220 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, high-tensile steels (4140, 4340, 1045) | Optimal (High-Speed CVD Grade P15–P35) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels (Secondary application) | Effective (Conditional Light Machining) |
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 manufacturing schedule on track.
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 DNMG110404-HM NC3220 inserts.
Q: What differentiates the NC3220 grade from standard steel grades?
A: NC3220 features an enhanced multi-layer CVD coating optimized for higher cutting speeds and superior thermal deformation resistance in steel finishing.
Q: Are these indexable inserts fully compliant with ISO and ANSI standards?
A: Yes, all KORLOY turning inserts are manufactured strictly in accordance with international ISO and ANSI dimensional and coding standards.
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
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.