TaeguTec SCMT09T308-PC TT8115 | Square Cast Iron Turning Insert
Price shown is a starting point. Contact us for a precise quote based on your requirements.
TaeguTec SCMT09T308-PC TT8115
High-Speed Cast Iron Specialist: Advanced CVD Wear Resistance
Product Overview
"Which CNC insert is best for high-velocity finishing of ductile iron components while maintaining a long tool life and excellent surface integrity?"
The TaeguTec SCMT09T308-PC TT8115 is a high-performance solution tailored for ISO K (Cast Iron) and high-speed ISO P (Steel) applications. The TT8115 grade utilizes a thick, heat-resistant CVD coating optimized for abrasive materials like Gray and Ductile iron. The PC (Precision) chipbreaker geometry features a sharp, positive rake that minimizes cutting pressure, preventing vibration and ensuring a "mirror finish" even at high feed rates. With an 0.8mm nose radius, this insert provides the perfect balance of corner strength and precision for finishing passes in automotive and industrial machinery parts.
Key Features
Thick Al2O3 CVD coating provides extreme crater wear resistance, allowing for significantly higher cutting speeds in cast iron.
Optimized for light depths of cut. The positive rake reduces heat generation and prevents work hardening of the workpiece.
Excellent adherence of the coating layers prevents peeling and micro-chipping during high-temperature continuous cuts.
Technical Specifications
ISO Code Decoding: SCMT09T308-PC
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Prec Finish
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-PC | 9.52 mm | 3.97 mm |
| Imperial (ANSI) | SCMT32.52-PC | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Cast Iron (ISO K) | 200 - 450 m/min | 0.08 - 0.30 mm/rev |
| Steel (ISO P) | 180 - 350 m/min | 0.05 - 0.25 mm/rev |
Compatible Toolholders
This SCMT 09 series finishing insert fits standard 90° square positive holders. Best results when used with: SSKCR/L 09, SCKCR/L 09, or S-SCKCR 09 boring bars for precision internal finishing.
Product Applications
- High-speed finishing of automotive brake discs and engine blocks (Gray Iron).
- Precision turning of industrial gear housings and hydraulic valves (Ductile Iron).
- Finishing passes on carbon and alloy steel components requiring high surface gloss.
- Mass production lines where tool life consistency is the primary KPI.
TaeguTec Grade Comparison
| Grade Name | Coating | Primary Application |
|---|---|---|
| TT8115 | Thick CVD | Cast Iron Master: High speed & wear resistance in ISO K. |
| TT8125 | Tough CVD | Versatile: Medium turning with interrupted cuts in Cast Iron. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in metalworking technology, and the SCMT 09T308-PC TT8115 is a testament to our industrial expertise in cast iron machining. We understand that cast iron is abrasive and causes rapid tool wear at high speeds. Our TT8115 grade is engineered with a proprietary multi-layer CVD coating that acts as a thermal shield, protecting the sharp cutting edge from chemical and mechanical erosion. The PC chipbreaker is the result of rigorous field testing, ensuring that your machine runs smoother and your parts come out with a world-class surface Ra quality. Choose TaeguTec for precision, reliability, and increased productivity.
Verified Global Feedback
"Best Tool Life in GGG40"
We switched from a major competitor and gained 30% more parts per edge. The TT8115 grade handles the abrasive nature of ductile iron perfectly.
— Castings Engineering Group (USA)"Exzellente Oberfläche"
The PC chipbreaker provides a finish that often eliminates the need for grinding. Outstanding quality in automotive production.
— Precision Zerspanung (Germany)"Ottima per Ghisa Grigia"
High speeds are not a problem for this insert. Very stable performance even at 400 m/min. Best in class for ISO K.
— Meccanica Industriale (Italy)"Very Reliable Finishing"
Sharp and consistent. Using it for finishing passes on large steel shafts. The wear pattern is very predictable.
— Sato Heavy Components (Japan)Frequently Asked Questions
1. Is TT8115 suitable for interrupted cuts?
TT8115 is a high-hardness grade optimized for continuous finishing. For heavy interrupted cuts in cast iron, we recommend the tougher TT8125 grade.
2. Can I use this for Stainless Steel?
While it can cut steel, it is not recommended for stainless steel (ISO M). For stainless steel finishing, please use TT9225 or TT9080.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.