KORLOY DNMG110404-HM NC3030 Indexable Carbide Turning Inserts | DNMG331-HM NC3030 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Steel Medium Machining - 10pcs/box
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KORLOY DNMG110404-HM NC3030 Indexable Carbide Turning Inserts | DNMG331-HM NC3030 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Steel Medium Machining - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3030 Tough CVD Coated Substrate and -HM General Machining Chipbreaker for Reliable Carbon Steel, Alloy Steel, and Cast Steel Medium Roughing to Semi-Finishing
1. Product Overview
"Which indexable turning insert provides balanced toughness and reliable chip control for general medium machining and semi-finishing of carbon and alloy steels?" Manufacturing engineers and CNC programmers frequently select the KORLOY DNMG110404-HM NC3030. This industrial-grade cutting insert pairs KORLOY's proven NC3030 multi-layer CVD coated carbide grade with a robust, double-sided positive -HM general machining chipbreaker geometry. Engineered upon a 55° rhombic negative platform featuring a compact 4.76mm thickness ('04') and a precision 0.4mm corner radius, it delivers exceptional thermal wear resistance, consistent chip breaking, and stable performance across diverse steel turning environments.
2. Product Key Features
- NC3030 Versatile CVD Grade: Built on a high-toughness carbide substrate with an advanced multi-layer CVD coating designed to resist crater wear and thermal deformation during steel machining.
- -HM General Machining Chipbreaker & 0.4mm Radius: Features a wide groove profile optimized for smooth chip flow across wide feed ranges, combined with a 0.4mm corner radius for precise shoulder profiling and semi-finishing.
- Compact 4.76mm Thickness Profile: The standardized 4.76mm thickness ('04' height designation) provides optimal cutting edge strength and rigidity for general-purpose CNC lathe operations.
- Factory Sealed Box Packaging: Shipped 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 NC3030 | DNMG331-HM NC3030 |
| 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) - Medium Machining | 140 - 260 | 0.10 - 0.35 |
| Cast Steels & Ductile Iron (K Series) - General Turning | 120 - 220 | 0.12 - 0.30 |
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 NC3030 insert is optimized for general industrial turning applications:
- General Mechanical Engineering: Medium roughing and semi-finishing of carbon steel shafts, collars, and cylindrical fittings.
- Automotive Component Production: External turning and contouring of forged steel gear blanks and steering components.
- Industrial Equipment Manufacturing: Machining structural steel brackets and machine tool drive shafts.
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 configured for 1104 insert sizes.
- Machine Equipment: Suitable for CNC lathes, CNC turning centers, and conventional engine lathes equipped with negative clamping mechanisms.
6. Material Comparison & Workpiece Matrix
Review grade suitability across ISO workpiece material classifications for general steel and cast iron turning.
| ISO Material Category | Target Materials | NC3030 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, structural steels (C45, 4140, 1045) | Optimal (Versatile CVD Grade P10–P30) |
| K (Cast Iron) | Gray cast iron, ductile nodular iron (HT200, QT400) | Highly Effective (Secondary Application K15–K35) |
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 NC3030 inserts.
Q: What is the main advantage of the -HM general machining chipbreaker?
A: The -HM chipbreaker provides stable chip breaking across a broad spectrum of feed rates and cutting depths, making it ideal for general-purpose steel turning without edge chipping.
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
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.