TaeguTec VBMT160404FG TT5080 PVD Coated Carbide Turning Insert | 10 Pcs/Box
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TaeguTec VBMT160404FG TT5080 Inserts
Precision Fine Finishing in Stainless Steel & Superalloys | TT5080 PVD Coated Grade | Box of 10 Pcs
"Which 35-degree positive diamond PVD-coated carbide insert with a 0.4mm corner radius and FG chipbreaker is best for ultra-precise fine finishing, internal boring, and mirror-quality contouring in austenitic stainless steels and heat-resistant superalloys?"
The TaeguTec VBMT160404FG TT5080 is a high-precision, single-sided, positive-rake 35° rhombic turning insert engineered specifically for light finishing passes, tight dimensional tolerances, and delicate internal boring across austenitic stainless steels (ISO M), high-temperature superalloys (ISO S), and alloy steels (ISO P). Powered by TaeguTec's advanced TT5080 PVD AlTiN coated carbide grade—featuring a thin, smooth TiAlN-TiN physical vapor deposition (PVD) coating over an ultra-fine-grain tungsten carbide substrate—this insert maintains an acute, razor-sharp cutting edge with high fracture toughness and superior thermal shock resistance. Unlike thick multi-layer CVD coatings (such as TT8125) that round the cutting edge and can encourage built-up edge (BUE) on gummy metals, the thin-film PVD coating on TT5080 shears stainless steel and nickel-based superalloys cleanly while preventing notch wear and work-hardening. Paired with a precision 0.4mm nose radius and the specialized FG fine finishing chipbreaker designed with a sharp positive geometry for shallow depths of cut and delicate feed rates, it minimizes radial cutting forces to eliminate workpiece deflection and chatter on slender boring bars. Whether you are pairing it with internal boring bars like the Beyond S25S-SVJBR16 Internal Boring Bar, Beyond S16Q-SVXBR11 Boring Bar Holder, or Beyond C16Q-SVJBR11 Tungsten Steel Boring Bar, or browsing our extensive collections of TaeguTec VBMT inserts, TaeguTec VCMT inserts, TaeguTec VNMG inserts, Korloy VBMT inserts, ZCC-CT VBMT inserts, and Tungaloy positive turning inserts, the VBMT160404FG TT5080 guarantees elite shop floor productivity. Review additional engineering insights in our resources on carbide insert nose radius, stainless steel machining speeds and feeds, what is a carbide drill, and solid vs indexable milling.
Core Engineering Advantages
TT5080 PVD AlTiN Coated Grade
Thin-film TiAlN-TiN PVD coating preserves acute edge sharpness, preventing built-up edge and notch wear in stainless steels and superalloys.
FG Fine Finishing Chipbreaker
Positive rake design optimized for shallow depths of cut and low feed rates, delivering mirror-like surface finishes without scratching.
0.4mm Radius & 35° Positive Geometry
Low radial cutting pressure minimizes vibration during internal boring and enables crisp corner definition on complex profiles.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | VBMT 160404-FG | VBMT 331-FG (Approx.) |
| 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 | TT5080 (PVD AlTiN Coated Ultra-Fine Carbide) | Stainless & Superalloy PVD Carbide |
Recommended Cutting Parameters
*Values are starting recommendations for fine finishing and internal boring in stainless steels, high-temp alloys, and alloy steels with TT5080 PVD grade.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (Ap) |
|---|---|---|---|
| Austenitic Stainless Steels (M - 304 / 316L) | 140 - 230 m/min | 0.05 - 0.18 mm/rev | 0.20 - 1.50 mm |
| High-Temp Superalloys & Titanium (S - Inconel / Ti-6Al-4V) | 40 - 90 m/min | 0.04 - 0.15 mm/rev | 0.15 - 1.20 mm |
| Alloy Steels & Interrupted Fine Cuts (P - 4140) | 180 - 280 m/min | 0.06 - 0.20 mm/rev | 0.20 - 1.80 mm |
Compatible Tool Holders & Boring Bar Resources
Pair these precision 16-size (3/8" IC) positive inserts with compatible turning and boring toolholders such as the Beyond S25S-SVJBR16 Internal Boring Bar, Beyond S16Q-SVXBR11 Boring Bar Holder, and Beyond C16Q-SVJBR11 Tungsten Steel Boring Bar.
For internal profiling solutions, explore our rough and fine boring series or browse screw-on system boring bars.
Industrial Applications
- Stainless Steel & Superalloy Fine Finishing: Achieving mirror surface finishes and tight dimensional tolerances on surgical instruments, aerospace components, and food processing shafts.
- Deep Internal Boring & Thin-Walled Profiling: Low radial cutting pressure from the 0.4mm corner radius prevents vibration and chatter on long-overhang boring bars and thin stainless tubing.
- Multi-Brand Tooling Consolidation: Fully compatible with alternate positive turning systems across TaeguTec VBMT, Korloy VBMT, ZCC-CT VBMT, and Tungaloy positive turning inserts catalogs.
System Compatibility & Related Insert Catalogs
The VBMT 160404-FG fits all standard ISO-compliant positive 35° rhombic toolholders and boring bars designed for 9.525mm (3/8") IC positive VBMT inserts. To expand your tooling inventory, explore our comprehensive selections including TaeguTec VCMT, TaeguTec VNMG, 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 inserts:
- TT5080 (Featured - PVD AlTiN Coated Grade): Thin-film PVD TiAlN-TiN coated ultra-fine carbide engineered specifically for stainless steels (ISO M), high-temp superalloys (ISO S), and precision finishing where sharp edges and fracture toughness are essential.
- TT8125 (CVD Coated Grade): Thick multi-layer CVD coated carbide grade optimized for high-speed continuous turning in carbon steels and alloy steels (ISO P) where extreme thermal insulation is required.
- CT3000 (Uncoated Cermet Grade): Ceramic-metal composite designed specifically for high-speed mirror finishing in carbon steels without built-up edge.
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Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: When should I choose PVD grade TT5080 instead of CVD grade TT8125?
A: Choose PVD grade TT5080 for austenitic stainless steels (304/316L), titanium, high-temperature superalloys, or interrupted cuts where an acute, sharp edge and high fracture toughness prevent built-up edge and chipping. Choose thick CVD grade TT8125 for high-speed continuous turning in carbon steels.
Q: Why select a 0.4mm corner radius (VBMT160404FG) for internal boring?
A: A 0.4mm nose radius generates significantly lower radial cutting forces than a 0.8mm radius, preventing chatter and deflection on long-overhang boring bars while enabling crisp internal corner profiling in stainless steel.
Q: How many cutting edges are included in each box?
A: Each single-sided VBMT 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.
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