KORLOY SNMG190616-GR NC3020 Indexable Carbide Turning Inserts | SNMG643-GR (ANSI Equivalent) CVD Coated Inserts for Steel and Alloy Machining - 10pcs/box
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KORLOY SNMG190616-GR NC3020 Indexable Carbide Turning Inserts | SNMG643-GR (ANSI Equivalent) CVD Coated Inserts for Steel and Alloy Machining - 10pcs/box
High-Performance ISO-Standard 90° Square Negative Indexable Turning Cutters Featuring NC3020 CVD Coating and GR Chipbreaker for High-Speed Steel Roughing and Continuous Turning
1. Product Overview
"Which indexable turning insert is best suited for high-speed steel turning and continuous finishing operations requiring superior wear resistance?" CNC programmers and manufacturing operations frequently choose the KORLOY SNMG190616-GR NC3020. This industrial-grade turning insert pairs an advanced NC3020 CVD-coated carbide grade with a specially designed -GR heavy roughing chipbreaker geometry, ensuring smooth chip evacuation, high thermal resistance, and extended tool life across stable steel and alloy turning applications. Built on a rigid 90° square negative outline with 8 indexable cutting edges and a rugged 1.6mm corner radius, it delivers repeatable precision in high-output machining environments.
2. Product Key Features
- NC3020 CVD Coated Grade: Engineered with a wear-resistant multi-layer CVD coating optimized for high-speed steel turning and excellent crater-wear resistance.
- -GR Chipbreaker & 1.6mm Radius: Features an optimized groove structure for higher feed rates and deep depths of cut, backed by a robust 1.6mm corner radius to distribute cutting loads evenly.
- Double-Sided Indexable Economy: Square negative configuration offers 8 total indexable cutting edges (4 per side), maximizing tool cost efficiency.
- Standard Industrial Packaging: Delivered in protective factory packages containing 10 pieces for efficient toolcrib inventory management.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical specifications, metric-to-imperial cross-references, and ISO nomenclature breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | SNMG190616-GR | SNMG643-GR |
| Inscribed Circle (IC) | 19.05 mm | 0.750 in (3/4") |
| Insert Thickness (S) | 6.35 mm | 0.250 in (1/4") |
| Corner Radius (r) | 1.6 mm | 0.063 in (~1/16") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steel & Alloy Steel (High-Speed Machining) | 200 - 350 | 0.30 - 0.65 |
| Structural Steel & Low Carbon Workpieces | 180 - 300 | 0.35 - 0.70 |
Need matching MSSNR or PSBNR external turning toolholders for your SNMG 1906 inserts?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY SNMG190616-GR NC3020 insert is designed for versatile industrial turning environments:
- High-Speed Production Turning: Continuous and semi-continuous machining of carbon steel shafts and industrial components.
- Automotive Component Manufacturing: Efficient mass production of precision drive axles and transmission components.
- General Industrial Engineering: Heavy-duty metal removal across standard structural steel and alloy workpieces.
5. Compatibility
Engineered to integrate seamlessly with standard ISO negative toolholding systems:
- Toolholders: Fully compatible with standard MSSNR/L, PSBNR/L, and CSBNR/L pin-and-clamp external turning toolholders built for SNMG 1906 inserts.
- Machine Equipment: Optimized for CNC lathes, turning centers, and automated manufacturing cells.
6. Material Comparison & Workpiece Matrix
Examine grade application suitability across ISO workpiece material classifications.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, and structural steel components (e.g., C45, 4140) | Optimal (High-Speed CVD Grade for P10–P25 Turning) |
| K (Cast Iron) | Gray cast iron and ductile iron castings | Good (Suitable for Continuous Cast Iron Turning K10–K25) |
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: How many inserts are included in each box?
A: Each standard factory box contains exactly 10 pieces of SNMG190616-GR NC3020 inserts.
Q: What is the primary difference between NC3020 and NC3030 grades?
A: NC3020 is tailored for higher cutting speeds and enhanced wear resistance in continuous steel turning, whereas NC3030 provides a more balanced toughness profile for general applications.
Q: Which toolholders are compatible with this SNMG 1906 insert?
A: It fits standard ISO negative turning toolholders designed for SNMG 1906 geometry, such as MSSNR or PSBNR external toolholder bars.
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.