Korloy Indexable Turning Insert VNMG160408-HM PC9030 | VNMG 432-HM (Imperial Equivalent) PVD Coated Carbide Inserts for Heavy-Duty Stainless 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 VNMG160408-HM PC9030 | VNMG 432-HM (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel & Alloy Roughing - 10pcs Box
High-Performance ISO-Standard 35° Rhombic Negative Indexable Turning Cutters for Industrial Austenitic Stainless Steels, Alloy Steels, and General Medium-to-Heavy Machining Operations
1. Product Overview
"Which indexable turning insert is best suited for stable roughing and general turning of stainless steel and alloy steel where strong edge toughness, predictable wear resistance, and reliable chip control under interrupted cuts are required?" CNC operators and manufacturing engineers frequently select the Korloy VNMG160408-HM PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 specialized PVD-coated grade optimized for difficult-to-machine materials, combined with a 35° rhombic negative geometry providing 4 usable cutting edges (2 per side) for maximum economic efficiency, an optimal 0.8mm corner radius for balanced strength and profiling versatility, and a specialized -HM chipbreaker engineered with a robust double-land profile to withstand high cutting loads, resist thermal shock, and ensure controlled chip breaking during demanding stainless steel turning passes.
2. Product Key Features
- PC9030 Advanced PVD Coated Grade Technology: A tough, shock-resistant carbide substrate paired with a high-density nano-structured PVD coating engineered to combat edge chipping, thermal cracking, and adhesive wear in stainless steels.
- Optimized -HM General Chipbreaker Geometry: Dual-land reinforcement design providing high cutting edge strength for general-to-heavy turning without sacrificing cutting sharpness.
- 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 | VNMG160408-HM | VNMG 432-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 (08) | 0.8 mm | 0.0313 inch (2 radius designation scale / 1/32") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic & Martensitic Stainless Steels (M10 - M30) | 120 - 220 | 0.15 - 0.40 |
| Alloy Steels & Carbon Steels (P15 - P35) | 150 - 280 | 0.20 - 0.45 |
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 VNMG160408-HM PC9030 insert delivers outstanding reliability across heavy manufacturing, energy equipment production, automotive drive shafts, and general industrial machining:
- Industrial Valve & Pump Body Roughing: High-feed turning of forged stainless steel components.
- Automotive Transmission Shafts: Continuous and interrupted roughing passes on alloy steel forgings.
- General CNC Machine Shops: Versatile medium-to-heavy stock removal operations requiring dependable insert tool life.
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 high-power CNC lathes, heavy-duty turning centers, and vertical turning lathes (VTL).
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 | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and duplex stainless steels | Excellent (Dedicated PVD Grade Optimized for Stainless Roughing) |
| P (Steel) | Carbon steels, alloy steels, and structural steels | Very Good (Strong resistance to plastic deformation under heavy feeds) |
| S (Superalloys) | Heat-resistant nickel-based alloys and titanium alloys | Good (Suitable for general roughing with reduced cutting speed) |
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: What makes the VNMG160408-HM insert ideal for stainless steel roughing compared to finishing geometries?
A: The robust double-land -HM chipbreaker provides exceptional edge strength to withstand high depth of cut and feed rates, preventing premature chipping during rough machining.
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: Can PC9030 grade inserts be used for interrupted cutting conditions?
A: Yes. The tough carbide substrate combined with the -HM robust edge geometry provides excellent thermal shock resistance and toughness for light-to-moderate interrupted cuts.
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.