Korloy Indexable Turning Insert VNMG160404-HM NC3030 | VNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for General Steel and Alloy Machining - 10pcs Box
Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
Korloy Indexable Turning Insert VNMG160404-HM NC3030 | VNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Machining - 10pcs Box
High-Performance ISO-Standard 35° Rhombic Negative Indexable Turning Cutters for Carbon Steels, Alloy Steels, and General Industrial Turning Operations
1. Product Overview
"Which indexable turning insert is best suited for general machining, medium roughing, and continuous-to-interrupted cutting of carbon steels and alloy steels where high edge toughness, reliable chip control, and extended thermal wear resistance are required?" CNC operators and manufacturing engineers frequently select the Korloy VNMG160404-HM NC3030. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3030 specialized CVD-coated grade optimized for general steel machining, combined with a 35° rhombic negative geometry providing 4 usable cutting edges (2 per side) for maximum economic efficiency, a 0.4mm corner radius for precise profile and contour control, and a specialized -HM chipbreaker engineered with a robust medium-duty groove geometry to withstand moderate shock loads, prevent edge chipping, and ensure smooth chip evacuation during general turning passes.
2. Product Key Features
- NC3030 Advanced CVD Coated Grade Technology: A tough wear-resistant carbide substrate combined with a multi-layer CVD coating engineered to maximize thermal crack resistance, prevent flank wear, and ensure extended tool life in steel turning.
- Optimized -HM General Machining Chipbreaker Geometry: Robust medium-duty design providing enhanced cutting edge strength and reliable chip control across diverse feed rates and depths of cut.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure clamp locking and exact interchangeability across standard negative external turning tool holders and boring bars.
- Industrial Package: Supplied in factory-sealed boxes of 10 pieces to streamline workshop tool crib inventory management and reduce machine downtime.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe and turning tool holder integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | VNMG160404-HM | VNMG 431-HM |
| Inscribed Circle / Size | 16.07 mm (16 series scale equivalent) | 1/2" nominal scale equivalent (4 series) |
| Insert Thickness (04) | 4.76 mm (3/16" thickness class) | 0.1875 inch (3 series / 3/16" scale equivalent height class) |
| Corner Radius (04) | 0.4 mm | 0.0156 inch (1 radius designation scale / 1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Low Alloy Steels (P15 - P35) | 160 - 300 | 0.15 - 0.35 |
| Alloy Steels & Cast Steels (P20 - P40) | 130 - 240 | 0.12 - 0.30 |
Need matching MVJNR/L or PVJNR/L external turning tool holders for your 1604 VNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy VNMG160404-HM NC3030 insert delivers outstanding reliability across general industrial machinery, automotive drive axles, heavy equipment components, and structural steel turning:
- Automotive Axle Shafts & Forgings: General turning and medium roughing operations on high-strength alloy steel components.
- Heavy Industrial Machinery: Versatile machining passes on structural carbon steel frames and rotating shafts.
- General Component Manufacturing: Reliable continuous and interrupted turning across diverse steel workpieces.
5. Compatibility
Engineered to integrate seamlessly into standard negative industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with MVJNR/L, PVJNR/L, and DVJNR/L negative lever-lock and pin-lock external tool holders configured for VNMG 1604 series inserts.
- CNC Machinery: Optimized for CNC lathes, heavy-duty turning centers, and multi-tasking machine tools.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance and prevent tool wear.
| ISO Material Category | Target Materials | NC3030 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, and structural steels | Excellent (Versatile CVD Grade Optimized for General Steel Machining & Toughness) |
| K (Cast Iron) | Grey cast iron and nodular cast iron | Moderate (Applicable for light turning under stable conditions) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels | Not Recommended (Stainless steel requires dedicated PVD grades) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: Why is the NC3030 grade ideal for general steel machining and multi-purpose turning?
A: NC3030 combines a balanced tough carbide substrate with a robust multi-layer CVD coating that provides exceptional resistance to thermal shock and mechanical wear during general steel cutting operations.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable turning inserts, securely packed to prevent edge contact during transit.
Q: Is the -HM chipbreaker effective for general roughing and medium turning applications?
A: Yes. The robust medium-duty geometry of the -HM breaker provides high cutting edge strength and reliable chip control across diverse feed rates for general steel turning.
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.