TaeguTec CNMG120408MC TT8115 | PVD Turning Insert for Super Alloys
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✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
TaeguTec CNMG120408MC TT8115
Engineered for Excellence: High-Performance PVD Grade for Exotic Alloys & Stainless Steel
Product Overview
"Which CNC insert is best for maintaining a sharp cutting edge and resisting extreme heat when turning Inconel 718 or 316L Stainless Steel?"
The TaeguTec CNMG120408MC TT8115 is a premium turning solution designed for ISO S (Super Alloys) and ISO M (Stainless Steel). The TT8115 PVD grade features a specialized ultra-fine substrate and a multi-layered coating that provides exceptional resistance to notch wear and thermal cracking. Coupled with the MC (Medium) chipbreaker, this insert balances edge strength with smooth chip evacuation, making it the ideal choice for high-precision components in aerospace, medical, and energy sectors.
Key Features
Superior oxidation resistance and thermal stability for machining materials that generate extreme heat at the cutting zone.
A stable geometry that reduces cutting forces while providing excellent chip control across a wide range of feed rates.
High-toughness carbide base prevents micro-chipping, ensuring a predictable tool life in demanding HRSA applications.
Technical Specifications
ISO Code Decoding: CNMG120408MC
80° Rhom
0° Relief
Tolerance
Hole/Sint
12.7mm IC
4.76mm S
0.8mm RE
Medium
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120408MC | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CNMG432MC | 0.500" | 0.031" |
Recommended Cutting Parameters (ISO S/M)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Inconel / Super Alloys | 30 - 60 m/min | 0.15 - 0.35 mm/rev |
| Stainless Steel (316L) | 120 - 210 m/min | 0.18 - 0.40 mm/rev |
Compatible Toolholders
This 12.7mm I.C. insert fits all standard external and internal toolholders including DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 series.
Product Applications
- High-temperature alloy turning for aerospace turbine components.
- Precision machining of medical implants and surgical tools.
- Machining of corrosion-resistant stainless steel for marine and chemical valves.
- Medium machining of difficult-to-cut super alloys and duplex stainless steels.
TaeguTec Grade Comparison (HRSA Focus)
| Grade Name | Coating Type | Best Use Case |
|---|---|---|
| TT8115 (PVD) | Multi-Layer PVD | Primary Choice: Super Alloys (ISO S) and sharp edges. |
| TT9225 (CVD) | Thick CVD | Productivity: High-speed continuous Stainless Steel. |
Why Choose TaeguTec?
As a global leader within the IMC Group, TaeguTec represents the absolute peak of metallurgy and coating science. The TT8115 grade is specifically formulated to tackle the "impossible" materials—where heat and friction destroy standard inserts. Choosing the CNMG120408MC means investing in industrial reliability, reduced downtime, and the technical edge required for 21st-century manufacturing.
Verified Global Feedback
"Best for Inconel"
We were struggling with notch wear on our turbine parts. The TT8115 grade solved it. Highly predictable life.
— Aerospace Machining (USA)"Precision on Titanium"
Outstanding surface finish on medical grade Ti. The MC breaker works perfectly with our coolant pressure.
— MedTech Manufacturing (Germany)"Very Stable"
Great consistency between batches. It's our go-to for tough stainless turning jobs.
— Precision Engineering (Japan)Frequently Asked Questions
1. Why choose PVD over CVD for Super Alloys?
PVD coatings are thinner and smoother, allowing for a sharper cutting edge which is essential for reducing the heat generated when cutting gummy materials like Titanium or Inconel.
2. Can this be used for finishing?
The MC (Medium) breaker is designed for general-purpose machining. For ultra-fine finishing, you might consider the EA or PC geometries.
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.