TaeguTec CCMT120404PC TT9225 | CVD Carbide Turning Insert for Steel
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TaeguTec CCMT120404PC TT9225
The Universal Steel Specialist: Advanced CVD Multi-Layer Coating
Product Overview
"Which insert grade offers the best balance of tool life and surface finish when turning alloy steels at high spindle speeds?"
The TaeguTec CCMT120404PC TT9225 is a high-performance 80° rhombic turning insert specifically engineered for ISO P (Steel) and ISO M (Stainless Steel). Utilizing a thick, multi-layer CVD (Chemical Vapor Deposition) coating, the TT9225 grade provides a formidable thermal barrier against crater wear and plastic deformation. The PC (Precision Cutting) chipbreaker features a sharp rake angle and positive geometry, which significantly reduces radial cutting forces—making it the ideal choice for precision finishing and small-diameter boring where vibration control is paramount.
Key Features
Thick Al2O3 layer ensures superior heat resistance, allowing for higher cutting speeds in continuous machining.
Optimized for finishing applications; provides excellent chip breaking even at light depths of cut (Ap).
Reduces friction and cutting temperatures, preventing built-up edge (BUE) in gummy materials like stainless steel.
Technical Specifications
ISO Designation Breakdown: CCMT120404PC
80° Rhom.
7° Relief
Tolerance
Screw Fix
Edge L.
Thick (mm)
0.4 Rad.
Chipbreaker
| Unit | Model Number | I.C. (Inscribed Circle) | Corner Radius |
|---|---|---|---|
| Metric | CCMT120404PC | 12.7 mm | 0.4 mm |
| Imperial | CCMT431PC | 0.500" | 0.016" |
Recommended Cutting Parameters
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon/Alloy Steel | 180 - 320 m/min | 0.05 - 0.20 mm/rev |
| Stainless Steel | 120 - 240 m/min | 0.05 - 0.15 mm/rev |
Compatible Boring Bars & Holders
This insert fits all standard SCLCR/L 12 external holders and S-SCLCR/L 12 boring bars.
Applications & Compatibility
Primary Workpieces:
- Low/Medium Carbon Steels (1018, 1045)
- Alloy Steels (4140, 4340)
- Austenitic Stainless Steel (304, 316)
Equipment Compatibility:
Optimized for CNC Turning Centers, Swiss-type Lathes, and Manual Boring operations requiring high Ra surface finish.
Material Grade Comparison
| TaeguTec Grade | Type | Strength |
|---|---|---|
| TT9225 | CVD | Superior speed and thermal resistance for steel. |
| TT9080 | PVD | Higher toughness for exotics and interrupted cuts. |
Why Choose TaeguTec?
A member of the IMC Group, TaeguTec is a global leader in high-performance metallurgy. The TT9225 grade represents a strategic choice for shops aiming to reduce cycle times without sacrificing tool reliability. When you buy from us, you are guaranteed authentic TaeguTec quality, backed by technical expertise that understands the nuances of the shop floor.
Global Verified Reviews
"Excellent Finish on 4140"
Replaced my previous brand with TT9225. Spindle speed is up by 20% and the surface is mirror-like. Highly recommend the PC chipbreaker for boring.
— Hans M., Germany"Consistent Life"
Running these on a long production run of 304 SS. Tool wear is very predictable, which is exactly what we need for lights-out machining.
— Robert T., USA"Best for High Speed"
CVD coating handles the heat perfectly. Even when the chips are blue, the insert edge stays sharp. Good price point too.
— Tanaka K., JapanFrequently Asked Questions
Q: Is TT9225 suitable for heavy interrupted cuts?
A: While TT9225 has decent toughness, PVD grades like TT9080 are generally preferred for heavy interruptions. TT9225 excels in continuous to light interrupted turning.
Q: What is the benefit of the PC chipbreaker over standard ones?
A: The PC geometry is designed for precision cutting; it reduces radial pressure which prevents chatter in boring bars and thin workpieces.
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.