Taegutec TCMT16T304MT TT8125 Carbide Insert for CNC Turning (10pcs)
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TaeguTec TCMT16T304MT TT8125
Heavy-Duty Precision: Maximum Stability for High-Speed Steel Turning and Boring
Product Overview
"When depth of cut and surface finish are both critical, the 16mm TCMT offers the structural integrity needed for large-scale steel components."
The TaeguTec TCMT16T304MT TT8125 is a robust 16mm triangular turning insert engineered for Steel (ISO P). This larger format provides significantly more carbide mass, allowing for deeper cuts and better heat dissipation than smaller TCMT variants. The TT8125 grade is a premium PVD-coated carbide designed for high productivity, featuring advanced thermal resistance that thrives in high-speed environments. Paired with the MT (Medium Turning) chipbreaker, this insert delivers an incredibly versatile application range, from precise finishing at 0.4mm radius to stable medium-duty stock removal in carbon and alloy steels.
Core Advantages
A specialized coating that maintains edge hardness at high surface footages, significantly extending tool life in abrasive steels.
The increased size provides a massive "heat sink" effect, protecting the cutting edge during long-duration cuts in heavy workpieces.
A positive rake angle that slices through material to reduce spindle load while breaking chips effectively across variable feed rates.
Technical Specifications
ISO Designation Decoding: TCMT 16T304 MT
Triangle
7° Relief
Tol. Class M
W/ Hole
16.5mm L
3.97mm T
0.4mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | TCMT 16T304 MT | 16.50 mm | 3.97 mm |
| Imperial | TCMT 32.51 MT | 0.650" | 0.156" |
Recommended Cutting Parameters (TT8125)
| Material Group | Vc (m/min) | ap (mm) |
|---|---|---|
| Carbon Steel (P) | 180 - 350 | 0.50 - 3.50 |
| Alloy Steel / Hardened Steel | 120 - 260 | 0.50 - 2.50 |
Compatible Tool Holders
This insert is precision-matched for TCMT 16 size external tool holders and heavy-duty boring bars.
Industrial Applications
- High-speed finishing of large diameter steel axles and spindles.
- Internal boring of heavy-walled steel tubing and housings.
- General turning of carbon steel forgings and structural components.
- Precision finishing in alloy steels where surface footage (Vc) must remain high.
The TT8125 Precision Advantage
Selected here. A specialized PVD grade for ISO P. Better wear resistance than TT9080 for high-volume steel production.
The multi-material choice for shops machining a mix of steel and stainless steel in the same shift.
Frequently Asked Questions
1. Why choose the 16mm size over the 11mm or 09mm?
The 16mm size (this insert) is chosen for its superior strength and heat resistance. It is capable of handling much higher depths of cut (ap) and provides the stability needed for large-diameter boring where tool vibration can be an issue.
2. Is the 0.4mm radius too fragile for a 16mm insert?
Not in finishing. While a 0.8mm radius is more robust for roughing, the 0.4mm radius on this robust 16mm substrate allows for high-precision finishing with minimal cutting pressure, reducing the risk of deflection on larger 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.