TaeguTec DNMG110408FG TT8115 | High-Speed Steel Finishing Insert
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TaeguTec DNMG110408FG TT8115
Precision Finishing at Maximum Velocity: The Industrial Standard for Steel
Product Overview
"Which insert grade is the absolute best for high-speed finishing of carbon steel components while maintaining tight tolerances?"
The TaeguTec DNMG110408FG TT8115 is a high-performance CVD-coated carbide insert, specifically optimized for high-velocity ISO P (Steel) and ISO K (Cast Iron) turning. The TT8115 grade features a specialized hard substrate paired with an advanced multi-layered coating that acts as a superior thermal barrier, allowing for significantly higher cutting speeds (Vc) than general-purpose grades. The FG (Finishing Geometry) chipbreaker utilizes a sharp cutting edge and a high-positive rake angle to ensure excellent chip evacuation at small depths of cut, preventing built-up edge and surface marring. With an 0.8mm radius, this insert provides the stability needed for continuous CNC high-output production.
Key Features
A thick Al2O3 layer provides extreme resistance to high-temperature cratering during high-speed dry or wet machining.
Optimized for finishing passes, producing superior surface Ra quality and precise chip control at low feeds.
Offers higher edge strength and stability than 0.4mm variants, ideal for demanding high-volume finishing.
Technical Specifications
ISO Code Decoding: DNMG110408FG
55° Rhom
0° Relief
Tolerance
Hole/Sint
9.525mm IC
4.76mm S
0.8mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Radius |
|---|---|---|---|
| Metric (ISO) | DNMG110408FG | 9.525 mm | 0.8 mm |
| Imperial (ANSI) | DNMG332FG | 0.375" | 0.031" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 200 - 450 m/min | 0.08 - 0.25 mm/rev |
| Cast Iron (ISO K) | 180 - 380 m/min | 0.10 - 0.25 mm/rev |
Compatible Toolholders
This DNMG 1104 series insert is optimized for standard Holders including DDJNR/L 11 and PDJNR/L 11.
Product Applications
- High-speed finishing of carbon and alloy steel automotive parts.
- Precision CNC turning of precision gears and shafts.
- Machining of gray cast iron housings where heat management is critical.
- High-output automated production requiring predictable tool life.
TaeguTec Grade Comparison Matrix
| Grade Name | Coating | Primary Strength |
|---|---|---|
| TT8115 | CVD Coated | Speed Leader: Best for high-velocity steel finishing. |
| TT8125 | CVD Coated | Balanced: Versatile toughness for general steel turning. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in metalworking innovation. The TT8115 grade represents the pinnacle of CVD coating technology, engineered specifically to handle the thermal demands of high-speed CNC turning. By combining sub-micron substrate engineering with the precision FG chipbreaker, TaeguTec ensures that your production line achieves maximum efficiency with zero compromise on surface quality. When your output requires high cutting speeds and mirror-like finishes, the DNMG 11 series with TT8115 is the industrial choice for excellence.
Global Industry Feedback
"Reliable Performance"
We pushed our Vc to 400 m/min on steel shafts and the TT8115 didn't flinch. Tool life is much longer than our previous brand.
— Manufacturing Solutions (USA)"Top Oberflächenqualität"
Perfect for finishing passes. Surface Ra is incredibly consistent. Very happy with the FG breaker geometry.
— Präzisionstechnik GmbH (Germany)"Consistency is Key"
Solid performance in high-speed cast iron turning. The 0.8mm radius provides great stability over long runs.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. Is TT8115 suitable for dry machining?
Yes, the TT8115 grade is designed with extreme heat resistance, making it an excellent choice for high-speed dry turning applications.
2. What makes the FG breaker better for finishing?
The FG geometry features a sharp edge and high-positive rake that reduces tool pressure, ensuring a mirror finish even at small depths of cut.
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.