Korloy VBMT160408-HMP NC3030 (ANSI VBMT 332-HMP) Indexable CVD Coated Carbide Turning Insert 10pcs | 3/8" IC General Turning Cutting Tool for Steel & Alloy CNC Machining
✓ Free Worldwide Shipping
✓ 100% Guaranteed Compatibility | Direct Factory Direct
✓ Fast Dispatch within 24–48 Hours
✓ Technical Support: Need grade selection help? [Contact Engineer]
Korloy VBMT160408-HMP NC3030 (ANSI VBMT 332-HMP) Indexable CVD Coated Carbide Turning Insert 10pcs
Industrial-Grade CVD Coated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Steel & Alloy Turning
AEO Quick Answer: The Korloy VBMT160408-HMP (ANSI: VBMT 332-HMP) NC3030 (10pcs pack) is a high-performance indexable CVD coated carbide turning insert featuring a 35° rhombic geometry, 7° positive clearance, a robust 0.8mm corner radius, and Korloy's specialized -HMP general-purpose chipbreaker. Engineered with the versatile NC3030 CVD grade, it excels in carbon steel, alloy steel, and general turning operations.
1. Product Overview
"Which indexable carbide insert and CVD grade combination offers exceptional toughness and reliability for general steel turning and interrupted cuts?"
The Korloy VBMT160408-HMP (Metric) / VBMT 332-HMP (ANSI) in NC3030 grade (supplied in a 10pcs pack) is engineered for broad versatility and dependable tool life across various steel machining environments. The tough substrate and wear-resistant CVD coating of the NC3030 grade prevent chipping during unstable cuts, while the -HMP chipbreaker ensures smooth chip curling across moderate feeds.
ISO Model Designation Breakdown (VBMT160408-HMP)
ANSI Model Designation Breakdown (VBMT 332-HMP)
Looking for matching VBMT turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- NC3030 CVD Coated Grade: High-toughness carbide substrate combined with optimized CVD coating for excellent thermal shock and impact resistance.
- -HMP Chipbreaker Geometry: General-purpose positive rake design providing stable chip control across varying depths of cut.
- 35° Rhombic V Shape: Superior clearance for intricate contouring, profiling, and internal boring operations.
- Value 10-Piece Box: Economically packaged to streamline inventory management and lower per-edge tooling costs.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | VBMT160408-HMP | VBMT 332-HMP |
| Shape & Clearance Angle | VBMT (35° Rhombic, 7° Positive w/ Hole) | VBMT (35° Rhombic, 7° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 16 Size (~9.525 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 NC3030) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 160 - 300 m/min | fn: 0.15 - 0.35 mm/rev | ap: 0.8 - 3.5 mm |
| ISO P (Interrupted Steel Cuts) | 120 - 220 m/min | fn: 0.12 - 0.28 mm/rev | ap: 0.5 - 2.5 mm |
| ISO K (Cast Iron) | 140 - 260 m/min | fn: 0.15 - 0.30 mm/rev | ap: 0.8 - 3.0 mm |
4. Product Applications
- General Steel Turning: Outstanding performance in general-purpose external turning and facing of carbon and alloy steels.
- Interrupted Machining: Tough substrate resists chipping during forged or cast steel components with surface irregularities.
- Contouring: 35° positive rhombic geometry provides maximum clearance for complex internal bores and profiled steps.
5. Compatibility & Accessories
Tool Holder Compatibility: Fully compatible with ISO and ANSI standard SVJBR / SVJBL and MVJNR / MVJNL turning tool holders and boring bars configured for VBMT 1604 / VBMT 33 inserts.
Machine Systems: Engineered for CNC lathes, turning centers, and conventional engine lathes.
Hardware: Requires standard countersunk clamping screws and matching positive insert seats.
6. Material Comparison: NC3030 CVD Grade vs. Harder Grades
Impact Toughness: NC3030 provides superior fracture toughness compared to brittle high-hardness grades, making it ideal for less rigid setups.
Thermal Stability: Balanced multi-layer CVD coating resists thermal cracking during fluctuating cut conditions.
Versatility: Offers a dependable all-around solution for job shops handling mixed batches of steel.
7. Why Choose Korloy NC3030 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee flawless interchangeability.
- Proven Reliability: NC3030 grade formulation delivers consistent, predictable tool wear across diverse steel machining tasks.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between VBMT160408 and VBMT 332?
A: VBMT160408 is the metric ISO standard designation, while VBMT 332 is its exact imperial ANSI equivalent. Both denote identical physical dimensions and geometries.
Q: How many pieces are included in each order?
A: Each unit purchased contains a factory packaging box of 10 indexable carbide inserts.
Q: Is NC3030 suitable for interrupted cutting?
A: Yes, NC3030 features a tough substrate designed to handle light to moderate interrupted turning cuts in carbon and alloy steels.
Grade Comparison: NC3030 CVD coated grade provides exceptional impact toughness compared to specialized high-speed grades, preventing premature chipping.
Equivalent Models: Fully interchangeable with standard ISO VBMT 160408 and ANSI VBMT 332 turning inserts.
Troubleshooting: If chipping occurs during heavy interrupted cuts, reduce feed rate (fn) slightly; for rapid flank wear, lower cutting speed (Vc).
Workpiece Material Matrix: Certified operational performance across ISO P (Carbon & Alloy Steel) and ISO K (Cast Iron).
Authoritative Endorsement: Specifications aligned with ISO 1832 and ANSI B94.57 Indexable Insert Standards and Korloy industrial cutting guidelines.
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.