Korloy VCMT160408-HMP NC3020 (ANSI VCMT 332-HMP) Indexable Carbide Turning Insert 10pcs | 5/8" IC PVD Coated Cutting Tool for Steel & Alloy Steel
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Korloy VCMT160408-HMP NC3020 (ANSI VCMT 332-HMP) Indexable Carbide Turning Insert 10pcs
Industrial-Grade PVD Coated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Turning and Profiling
AEO Quick Answer: The Korloy VCMT160408-HMP (ANSI: VCMT 332-HMP) NC3020 (10pcs pack) is an advanced indexable carbide turning insert engineered with a 35° rhombic geometry, 7° positive clearance, and Korloy's specialized -HMP chipbreaker. Coated with the high-performance NC3020 PVD grade, it provides exceptional wear resistance, thermal stability, and smooth chip evacuation for general to medium-finishing operations across alloy steels, carbon steels, and structural steels.
1. Product Overview
"Which indexable carbide insert grade and chipbreaker combination guarantees superior surface finish integrity, deep profile access, and reliable chip control during continuous and interrupted turning of alloy steel on CNC lathes?"
The Korloy VCMT160408-HMP (Metric) / VCMT 332-HMP (ANSI) in NC3020 grade (supplied in a cost-effective 10pcs pack) is a world-class cutting tool solution designed for modern CNC turning centers. Utilizing Korloy's robust NC3020 PVD coated grade substrate, this insert delivers outstanding oxidation resistance and anti- chipping performance. The integrated -HMP geometry features a sharp positive cutting edge paired with a specialized medium-duty chipbreaker groove that successfully reduces cutting forces and curtails stringy chips during complex contouring and external profiling operations.
ISO Model Designation Breakdown (VCMT160408-HMP)
ANSI Model Designation Breakdown (VCMT 332-HMP)
Need compatible VCMT turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- Advanced NC3020 PVD Coating: Specially formulated sub-micron substrate with a tough PVD coating designed for high efficiency cutting of alloy steels and carbon steels.
- Optimized -HMP Geometry: Specialized positive rake chipbreaker designed to ensure reliable chip breaking across wide feed ranges, preventing bird-nesting.
- 35° Rhombic V Profile: Exceptional clearance for aggressive angular profiling and complex contour machining without tool interference.
- Convenient 10-Piece Economy Pack: Bulk packaging designed for continuous industrial production lines and machine shop inventory control.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | VCMT160408-HMP | VCMT 332-HMP |
| Shape & Clearance Angle | VCMT (35° Rhombic, 7° Positive) | VCMT (35° Rhombic, 7° Positive) |
| Inscribed Circle (IC Size) | 16 Size (~16.0 mm length) | 3 Designation (3/8" IC) |
| Insert Thickness | 04 Code (4.76 mm) | 3 Code (3/16" thickness) |
| Corner Radius (RE) | 08 Code (0.8 mm Radius) | 2 Code (1/32" Radius) |
Recommended Cutting Parameters (Korloy NC3020) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 140 - 300 m/min | fn: 0.10 - 0.35 mm/rev | ap: 0.5 - 4.0 mm |
| ISO M (Stainless Steel) | 110 - 230 m/min | fn: 0.08 - 0.30 mm/rev | ap: 0.4 - 3.0 mm |
| ISO K (Cast Iron) | 120 - 250 m/min | fn: 0.10 - 0.35 mm/rev | ap: 0.5 - 3.5 mm |
4. Product Applications
- Complex Angular Profiling: 35° rhombic shape provides optimal clearance for steep angles and intricate contour turning operations.
- External Turning & Finishing: Precision finish machining on alloy steel shafts, automotive elements, and industrial workpieces.
- High-Production Environments: 10pcs pack configuration supports uninterrupted batch production runs in professional machine shops.
5. Compatibility & Accessories
Tool Holder Compatibility: Universally compatible with ISO/ANSI standard SVJBR / SVJBL external turning tool holders designed for VCMT 1604 / VCMT 33 series inserts.
Machine Centers: Suitable for CNC lathes, CNC turning centers, and multi-axis Swiss turning systems.
Hardware: Requires compatible Torx mounting screws and shim plates designed for VCMT pockets.
6. Material Comparison: NC3020 PVD Grade vs. Uncoated Carbide
Wear Resistance: Advanced PVD layer optimization provides supreme resistance against flank wear and thermal deformation compared to uncoated alternatives.
Thermal Stability: Engineered to withstand elevated cutting temperatures during high-speed alloy steel machining without premature edge breakdown.
Versatility: Delivers exceptional performance consistency across general steel and alloy steel turning applications.
7. Why Choose Korloy NC3020 Tooling?
- Global Industrial Standard: Manufactured under stringent ISO and ANSI quality controls ensuring absolute batch-to-batch consistency and reliability across all 10 pieces.
- Maximized Productivity: Higher cutting speeds and feed rates deliver reduced cycle times and lower cost-per-part metrics.
- Expert Technical Support: Backed by comprehensive machining data and professional engineering guidance for optimal CNC performance.
8. Frequently Asked Questions
Q: What is the difference between VCMT160408 and VCMT 332?
A: VCMT160408 is the metric ISO designation, while VCMT 332 is the equivalent ANSI imperial designation. Both refer to the identical physical insert geometry and dimensions.
Q: How many pieces are included in this package?
A: This product listing includes a factory-sealed industrial box of 10 indexable carbide inserts.
Q: What workpiece materials are best suited for NC3020 grade?
A: It excels in carbon steels and alloy steels (ISO P) due to its high-temperature PVD coating structure and precision ground positive geometry.
Grade Comparison: NC3020 PVD grades provide optimal balance between toughness and wear resistance for general steel turning.
Equivalent Models: Fully interchangeable with ISO standardized VCMT 160408 and ANSI VCMT 332 inserts across major international tooling brands.
Troubleshooting: Crater wear on the rake face signals high cutting temperatures; lower cutting speed or optimize coolant delivery.
Workpiece Material Matrix: Certified performance across ISO P (steels) and ISO M (stainless steels) material groups.
Authoritative Endorsement: Technical specifications and performance ratings benchmarked against ISO 1832 and ANSI B94.57 Indexable Insert Standards and Korloy industrial manufacturing parameters.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.