KORLOY DNMG110408-HM NC3020 Indexable Carbide Turning Inserts | DNMG322-HM NC3020 (ANSI Equivalent) CVD Coated Inserts for Steel and Alloy Machining - 10pcs/box
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KORLOY DNMG110408-HM NC3020 Indexable Carbide Turning Inserts | DNMG322-HM NC3020 (ANSI Equivalent) CVD Coated Inserts for Steel Machining - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3020 Advanced CVD Coated Carbide Substrate and -HM Medium Chipbreaker for Superior Wear Resistance in Carbon Steel and Alloy Steel Machining
1. Product Overview
"Which indexable turning insert offers high wear resistance, thermal stability, and excellent chip control for general steel turning and facing operations?" Advanced manufacturing engineers and CNC operators frequently select the KORLOY DNMG110408-HM NC3020. This industrial-grade cutting insert combines KORLOY's specialized NC3020 CVD coated carbide grade with a dependable -HM chipbreaker geometry. Built upon a 55° rhombic negative platform featuring a 3.97mm thickness ('04') and a robust 0.8mm corner radius, it provides high edge strength, prevents plastic deformation under high cutting loads, and delivers exceptional tool life across carbon steel, alloy steel, and cast iron turning applications.
2. Product Key Features
- NC3020 Advanced CVD Carbide Grade: Engineered with a wear-resistant multi-layer CVD coating over a tough carbide substrate designed to withstand high temperatures and abrasive wear during continuous and light interrupted steel cutting.
- -HM Medium Chipbreaker & 0.8mm Radius: Features an optimized positive rake geometry for smooth chip evacuation during general turning, paired with a strong 0.8mm corner radius to handle higher feed rates and enhanced edge durability.
- Compact 3.97mm Thickness: Standardized '04' insert thickness class for the 11-series guarantees exact clamping stability, high rigidity, and reliable repeatability under demanding machining parameters.
- 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 | DNMG110408-HM NC3020 | DNMG322-HM NC3020 |
| 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) | 0.8 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 & Alloy Steels (P Series) - General Turning & Roughing | 180 - 320 | 0.15 - 0.35 |
| Cast Iron (K Series) - Continuous Cutting | 150 - 270 | 0.12 - 0.30 |
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 DNMG110408-HM NC3020 insert provides robust performance across general industrial turning operations:
- General Mechanical Drive Shafts: High-efficiency roughing and semi-finishing of carbon steel industrial shafts.
- Automotive Powertrain Parts: Stable turning of forged steel components under continuous cutting conditions.
- Industrial Gear Blanks: Reliable facing and contour turning of alloy steel gear blanks.
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 conventional CNC lathes, heavy-duty turning centers, and automated manufacturing cells.
6. Material Comparison & Workpiece Matrix
Evaluate CVD carbide grade appropriateness across ISO workpiece material categories for general steel and cast iron turning operations.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, low-alloy structural steel (1045, 4140, 20CrMnTi) | Optimal (General Turning P20–P35) |
| K (Cast Iron) | Gray cast iron and ductile cast iron (HT200, QT400) | Effective (Continuous Machining K15–K30) |
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 carbide inserts are contained in a standard factory box?
A: Each original factory box contains exactly 10 pieces of DNMG110408-HM NC3020 inserts.
Q: What is the advantage of the 0.8mm corner radius compared to a 0.4mm radius?
A: The 0.8mm corner radius provides greater edge strength and allows for higher feed rates, making it ideal for general turning and roughing passes where edge durability is critical.
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
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.