TaeguTec CNMG120408MT TT8115 | PVD Carbide Insert for Stainless Steel
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TaeguTec CNMG120408MT TT8115
The HRSA Authority: High-Performance PVD Solution for Heat-Resistant Super Alloys & Stainless Steel
Product Overview
"Which turning insert grade offers the best tool life when machining Inconel or Titanium while preventing notch wear and work-hardening?"
The TaeguTec CNMG120408MT TT8115 is an 80° rhombic insert designed for the most demanding ISO M and ISO S materials. The TT8115 PVD grade features a specialized coating that excels in high-heat environments, preventing chemical wear and maintaining edge sharpness against abrasive alloys. The MT (Medium-Tough) chipbreaker, combined with a 0.8mm radius, provides enhanced edge strength for stable medium turning, ensuring excellent chip evacuation and reducing the risk of sudden tool failure in high-value components.
Key Features
Extreme thermal stability and coating adhesion designed specifically for heat-resistant super alloys (HRSA).
A robust corner radius provides increased durability for interrupted cuts and heavier depths of cut.
Optimized rake angle reduces cutting forces and prevents work-hardening of the workpiece surface.
Technical Specifications
ISO Code Decoding: CNMG120408MT
80° Rhom
0° Relief
Tolerance
Hole/Sinter
12.7mm L
4.76mm S
0.8mm RE
Chipbreaker
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120408MT | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CNMG432MT | 0.500" | 0.031" |
Recommended Cutting Parameters (ISO M/S)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (Austenitic) | 150 - 230 m/min | 0.15 - 0.40 mm/rev |
| Nickel Alloys (Inconel) | 35 - 70 m/min | 0.10 - 0.25 mm/rev |
Matching Toolholders
Standard fit for DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external and internal boring bars.
Product Applications
- High-temperature turning of Aerospace turbine blades and flanges.
- Precision machining of Stainless Steel pump bodies and valve stems.
- Turning of Medical-grade Titanium alloys requiring high bio-compatibility.
- Stable machining of Duplex and Super-Duplex Stainless Steels.
TaeguTec Grade Comparison (Stainless & HRSA)
| Grade Name | Coating Strategy | Primary Application |
|---|---|---|
| TT8115 (PVD) | Advanced High-Heat PVD | Top Performance: Inconel, Titanium, Stainless. |
| TT8020 (PVD) | General Purpose PVD | Versatile: Mixed Stainless and Alloy Steel. |
Why Choose TaeguTec?
A global leader within the IMC Group, TaeguTec represents the absolute frontier of industrial metallurgy. The TT8115 grade is engineered for the high-stakes aerospace and energy sectors, where material costs are high and failure is not an option. By selecting TaeguTec, you choose industrial-grade consistency, superior heat management, and a tool that delivers professional performance in the world's most difficult-to-cut materials.
Verified Global Feedback
"Flawless on Titanium"
We machine medical implants and needed a grade that wouldn't overheat. TT8115 stays sharp and doesn't pull material. Exceptional quality.
— MedTech Manufacturing (USA)"Best for Stainless 316L"
Excellent chip control with the MT breaker. The 0.8mm radius gives us the edge strength we need for interrupted cuts on large flanges.
— Petro-Industrie GmbH (Germany)"Stable in High-Heat Cuts"
Predictable edge wear on Hastelloy. It allows us to keep our CNC machines running longer without manual offsets.
— Aero-Components (Japan)Frequently Asked Questions
1. Is TT8115 better than CVD grades for Stainless Steel?
PVD grades like TT8115 have thinner, sharper edges, which are critical for preventing work-hardening in gummy materials like Stainless and HRSA.
2. Should I use coolant with this insert?
High-pressure coolant is strongly recommended for ISO M/S materials to assist in chip breaking and to maintain the integrity of the PVD coating.
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.