TaeguTec VCMT160408PC TT9225 Carbide Turning Insert | 10 Pcs/Box
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TaeguTec VCMT160408PC TT9225 Inserts
High-Performance Stainless Steel & Alloy Steel Finishing | TT9225 Nano PVD Grade | Box of 10 Pcs
"Which 35-degree positive diamond carbide insert with a 0.8mm corner radius and PC chipbreaker is best for smooth, low-force turning and profiling in stainless steel and alloy steels?"
The TaeguTec VCMT160408PC TT9225 is a single-sided, positive-rake 35° rhombic turning insert engineered specifically for low-cutting-force precision finishing, copy turning, and internal boring in stainless steels, alloy steels, and heat-resistant superalloys. Powered by TaeguTec's advanced TT9225 nano PVD coating grade, this insert combines an ultra-tough, fine-grained carbide substrate with a high-density, multi-layer TiAlN Physical Vapor Deposition (PVD) coating. Designed to combat rapid thermal wear and Built-Up Edge (BUE) during gummy stainless steel machining, the TT9225 grade delivers exceptional edge stability and flank wear resistance. Paired with the sharp, positive-rake PC finishing-to-medium chipbreaker and a durable 0.8mm corner radius, it reduces cutting pressures and curls chips cleanly across light-to-medium feeds. Whether you are boring 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 VCMT160408PC TT9225 ensures superior surface finish and reliable tool life. Explore further design insights in our resources on carbide insert nose radius and stainless steel machining speeds and feeds.
Core Engineering Advantages
TT9225 Nano PVD Shield
Advanced multi-layer TiAlN nano PVD coating resists thermal cracking and BUE when turning sticky stainless and alloy steels.
PC Finishing Chipbreaker
Sharp positive-rake geometry curls finishing chips smoothly and maintains low cutting forces across varying depths.
35° Positive Profiling Access
Slender rhombic shape and 0.8mm nose radius provide excellent clearance in tight internal profiles and complex internal bores.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | VCMT 160408-PC | VCMT 332-PC |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.80 mm | 0.0315" (approx. 1/32") |
| Grade & Coating | TT9225 (Nano PVD TiAlN Coated) | Stainless & Alloy Steel PVD Carbide |
Recommended Cutting Parameters
*Values are starting recommendations for finishing and light profiling in stainless steel and alloy steels. Apply steady flood coolant.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (Ap) |
|---|---|---|---|
| Stainless Steel (304 / 316) | 120 - 220 m/min | 0.08 - 0.25 mm/rev | 0.30 - 2.00 mm |
| Alloy & Carbon Steel (4140 / 1045) | 160 - 280 m/min | 0.10 - 0.30 mm/rev | 0.40 - 2.50 mm |
| Superalloys (Inconel / Titanium) | 45 - 90 m/min | 0.06 - 0.20 mm/rev | 0.25 - 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
- Precision Internal Bore Finishing: Delivering smooth, low-chatter surface finishes in deep blind or through-holes for stainless steel and alloy parts.
- Slender Shaft & Contour Profiling: 7° positive clearance and sharp PC edge geometry prevent workpiece deflection on thin-walled 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 160408PC (ANSI VCMT 332 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 inserts:
- TT9225 (Featured - Stainless & Alloy Steel Nano PVD Grade): High-density nano-structured TiAlN PVD coating engineered for superior wear resistance and thermal shock stability in stainless steel (ISO M) and alloy steels (ISO P).
- TT5080 (PVD): Universal tough PVD grade recommended when machining mixed materials under lower rigidity or light interrupted cuts.
- TT8115 / TT8125 (CVD): Thick multi-layer CVD coated grades designed primarily for high-speed negative turning of steels.
Why Machinists Choose Our Store
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Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: What is the advantage of PVD grade TT9225 in stainless steel turning?
A: TT9225 utilizes a high-density nano PVD TiAlN coating that maintains superior hardness at elevated temperatures, effectively preventing built-up edge (BUE) and thermal cracking common in gummy stainless steels.
Q: When should I choose a positive VCMT insert over a negative VNMG insert?
A: Choose positive VCMT inserts when performing internal boring or machining slender, vibration-sensitive parts where lower cutting forces and 7° clearance angles are required to prevent 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.
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