KORLOY DNMG110404-HM NC3120 Indexable Carbide Turning Inserts | DNMG321-HM NC3120 (ANSI Equivalent) CVD Coated Carbide Inserts for Steel & Alloy Turning - 10pcs/box
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✓ Technical Support: Need grade selection help? Contact Engineer
KORLOY DNMG110404-HM NC3120 Indexable Carbide Turning Inserts | DNMG321-HM NC3120 (ANSI Equivalent) CVD Coated Carbide Inserts for Steel & Alloy Turning - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3120 Advanced CVD Coated Substrate and -HM Chipbreaker for Superior Steel and Alloy Machining
1. Product Overview
"Which indexable turning insert provides superior wear resistance and thermal stability for general steel and alloy machining applications?" Manufacturing engineers and CNC machinists consistently select the KORLOY DNMG110404-HM NC3120. This industrial-grade cutting insert combines KORLOY's specialized NC3120 multi-layer CVD coated carbide grade with a double-sided positive -HM chipbreaker geometry. Built upon a 55° rhombic negative platform with a compact 3.97mm thickness ('04') and a fine 0.4mm corner radius, it guarantees exceptional edge toughness, excellent crater wear resistance, and reliable chip control during continuous and interrupted steel turning operations.
2. Product Key Features
- NC3120 Advanced CVD Grade: Engineered with a specialized multi-layer CVD coating optimized for general steel, carbon steel, and alloy steel turning, delivering high wear resistance and thermal shock stability.
- -HM Chipbreaker & 0.4mm Radius: Features an optimized groove design for steady chip control at medium feeds, paired with a precision 0.4mm corner radius for tight dimensional tolerances and smooth surface finishes.
- Compact 3.97mm Thickness: Standardized '04' insert thickness class for the 11-series provides exact dimensional fit and rigidity for compact toolholders.
- Factory Sealed Box Packaging: Supplied in authentic KORLOY packaging containing 10 precision indexable inserts.
3. Technical Specifications & Model Breakdown
Examine the 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 NC3120 | DNMG321-HM NC3120 |
| Inscribed Circle (IC) | 11.6 mm | 0.375 in (3/8") |
| Insert Thickness (S) | 3.97 mm | 0.156 in (5/32") |
| Corner Radius (r) | 0.4 mm | 0.0156 in (~1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Alloy Steels (P Series) - General Turning | 150 - 320 | 0.10 - 0.35 |
| Cast Iron & Hardened Steels (K Series) - Light Machining | 120 - 250 | 0.08 - 0.25 |
Looking for precision external turning toolholders or boring bars designed for secure DNMG 1104 insert clamping?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY DNMG110404-HM NC3120 insert delivers outstanding reliability across precision industrial sectors:
- Automotive Powertrain Component Manufacturing: High-speed finishing and medium turning of carbon steel shafts, gears, and drive components.
- General Machinery & Industrial Equipment: Precision machining of structural steel brackets, rollers, and mechanical housings.
- Mold and Die Engineering: Contouring and facing medium-carbon steel mold bases and component inserts.
5. Compatibility
Engineered to integrate seamlessly with standard ISO negative turning toolholders:
- Toolholders: Fully compatible with ISO standard DDJNR/L, MDJNR/L, and PDJNR/L external turning toolholders and boring bars configured for 1104 inserts.
- Machine Equipment: Optimized for CNC turning centers, automatic lathes, and heavy-duty industrial lathe systems.
6. Material Comparison & Workpiece Matrix
Evaluate grade appropriateness across ISO workpiece material categories for general steel and alloy turning operations.
| ISO Material Category | Target Materials | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Low carbon steel, unalloyed steel, alloy steel, and cast steel (C45, 4140, 4340) | Optimal (Specialized CVD Grade P15–P35) |
| K (Cast Iron) | Gray cast iron and nodular cast iron (GG25, GGG40) | Effective (Light Interrupted Turning) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch quality and dependable 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 inserts are contained in a standard factory box?
A: Each original factory box contains exactly 10 pieces of DNMG110404-HM NC3120 inserts.
Q: What is the primary difference between DNMG1104 and DNMG1504 inserts?
A: DNMG1104 features a smaller inscribed circle (11.6mm vs 15.5mm), making it ideal for compact toolholders and smaller component machining where lighter depth of cut is required.
Q: Are these indexable inserts fully compatible with standard ISO and ANSI toolholders?
A: Yes, they are manufactured strictly to ISO and ANSI international standards to ensure secure seating in any standard negative turning holder.
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.