TaeguTec VCMT160404PC CT3000 Cermet Turning Insert | 10 Pcs/Box
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TaeguTec VCMT160404PC CT3000 Inserts
High-Speed Mirror Surface Finishing | CT3000 Uncoated Ti(C,N) Cermet Grade | Box of 10 Pcs
"Which 35-degree positive diamond cermet insert with a 0.4mm corner radius and PC chipbreaker is best for achieving mirror-like surface finishes and tight tolerances in high-speed steel and cast iron finishing?"
The TaeguTec VCMT160404PC CT3000 is a single-sided, positive-rake 35° rhombic turning insert engineered specifically for ultra-fine finishing, high-speed copy profiling, and precision internal boring in carbon steels, alloy steels, and gray/ductile cast irons. Powered by TaeguTec's premier CT3000 uncoated Ti(C,N)-based cermet grade, this insert replaces traditional tungsten carbide with titanium carbonitride hard particles bonded in a tough metallic matrix. Because cermet exhibits ultra-low chemical affinity to iron, the CT3000 grade completely eliminates Built-Up Edge (BUE) and micro-welding—producing glossy, ground-like surface roughness (Ra values) while resisting crater and flank wear at high cutting speeds. Paired with the sharp, positive-rake PC finishing chipbreaker and a precise 0.4mm corner radius, it minimizes radial cutting pressure to prevent chatter in slender shafts and internal boring bars. Whether you are boring tight internal diameters with Beyond S16Q-SVXCR16 Boring Bar Holder or browsing our broader selections of TaeguTec VCMT inserts, TaeguTec VBMT inserts, and TaeguTec VNMG inserts, the VCMT160404PC CT3000 delivers exceptional dimensional accuracy. Explore further design insights in our resources on carbide insert nose radius and insert grade speeds and feeds.
Core Engineering Advantages
CT3000 Anti-BUE Cermet Matrix
Titanium carbonitride cermet resists chemical reaction with ferrous workpieces, preventing built-up edge for mirror-like finishes.
PC Positive Finishing Chipbreaker
Sharp positive-rake geometry curls thin finishing chips smoothly while maintaining ultra-low radial cutting forces.
35° Acute Profiling Access
Slender rhombic shape and 0.4mm nose radius clear narrow relief grooves, sharp 90° shoulders, and tight internal bores.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | VCMT 160404-PC | VCMT 331-PC |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.40 mm | 0.0157" (approx. 1/64") |
| Grade & Substrate | CT3000 (Uncoated Ti(C,N) Cermet) | High-Speed Finishing Cermet |
Recommended Cutting Parameters
*Values are starting recommendations for high-speed continuous finishing and internal boring in carbon steels, alloy steels, and cast irons. Avoid heavy interrupted cuts.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (Ap) |
|---|---|---|---|
| Carbon Steel (1045 / S45C) | 200 - 380 m/min | 0.05 - 0.22 mm/rev | 0.15 - 1.50 mm |
| Alloy & Tool Steel (4140 / 4340) | 180 - 320 m/min | 0.05 - 0.20 mm/rev | 0.15 - 1.20 mm |
| Gray & Ductile Cast Iron (FC250 / FCD450) | 180 - 340 m/min | 0.06 - 0.24 mm/rev | 0.20 - 1.50 mm |
Compatible Tool Holders & Boring Bar Resources
Pair these positive inserts with compatible 16-size (3/8" IC) positive turning and boring toolholders such as the Beyond S16Q-SVXCR16 Boring Bar Holder, Beyond S16Q-SVQCL11 Boring Bar Holder, and Beyond C16Q-SVJCR11 Tungsten Steel Boring Bar.
For internal profiling solutions, explore our rough and fine boring series or browse screw-on system boring bars.
Industrial Applications
- Mirror-Finish Precision Bore Profiling: Achieving low-Ra surface finishes in precision hydraulic cylinders, bearing seats, and automotive shafts without post-grinding.
- Slender Shaft & Thin-Walled Finishing: 7° positive clearance and 0.4mm nose radius minimize radial cutting forces to prevent chatter and deflection on delicate components.
- Multi-Brand Tooling Consolidation: Fully compatible with alternate positive turning systems across Korloy VCMT, Korloy VCGT/VCMT, and ZCC-CT VCMT catalogs.
System Compatibility & Related Insert Catalogs
The VCMT 160404PC (ANSI VCMT 331 PC) fits all standard ISO-compliant positive 35° rhombic boring bars and turning toolholders. To expand your tooling inventory, explore our comprehensive selections including TaeguTec VCMT, TaeguTec VBMT, and TaeguTec negative turning inserts. Review additional application guides such as CNMG grade cross reference guide, chipbreaker family guide, inserts by material, inserts by operation, and top global CNC insert brands.
TaeguTec Grade Selection Matrix
Selecting the optimal TaeguTec turning grade for positive finishing inserts:
- CT3000 (Featured - Uncoated Ti(C,N) Cermet Grade): Ultra-wear-resistant uncoated cermet grade engineered for high-speed continuous finishing of steels (ISO P05-P15) and cast irons (ISO K) where superior surface finish and tight tolerances are critical.
- PV3010 (PVD Coated Cermet): PVD-coated cermet grade recommended when higher edge strength and thermal stability are required in light interrupted finishing.
- TT8115 / TT8125 (CVD Coated Carbide): Thick multi-layer CVD coated tungsten carbide grades designed for general-to-high speed steel turning with higher depth of cut and impact resistance.
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Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: Is CT3000 a coated carbide grade or an uncoated cermet grade?
A: CT3000 is an uncoated titanium carbonitride (Ti(C,N)) cermet grade. Unlike CVD or PVD coated tungsten carbide, uncoated cermet possesses natural chemical inertness against steel, preventing built-up edge and delivering superior mirror surface finishes.
Q: When should I choose a 0.4mm corner radius (VCMT160404) over 0.8mm (VCMT160408)?
A: Choose the 0.4mm radius when boring small internal diameters, machining slender shafts, or cutting sharp 90° internal shoulders where minimizing radial cutting forces is essential to prevent vibration and chatter.
Q: How many cutting edges are included in each box?
A: Each single-sided VCMT insert provides 1 precision indexable cutting edge (10 edges total per factory-sealed box).
Need Help With TaeguTec Inserts?
Looking for a TaeguTec 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 TaeguTec 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.