Taegutec TNMG 160404R-FS TT8115 CVD Insert for High-Speed Steel Finishing (10pcs)
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TaeguTec TNMG 160404R-FS TT8115
Precision Steel Finishing at Peak Cutting Speeds
Product Overview
"Which insert is most effective for achieving mirror-like surface finishes on alloy steel at high RPMs?"
The TaeguTec TNMG 160404R-FS TT8115 is a high-speed finishing specialist for ISO P (Steel) materials. The TT8115 grade utilizes a state-of-the-art CVD coating with high alumina content, providing an incredible thermal barrier and wear resistance for continuous cutting. The FS (Finishing) chipbreaker is engineered for low depth-of-cut precision, featuring a sharp geometry that slices through steel to minimize vibration and prevent surface smearing. With a 0.4mm corner radius and Right-hand (R) design, this insert is the go-to for CNC operators demanding strict dimensional tolerances and elite Ra values.
Key Core Advantages
Optimized for high-speed machining (Vc up to 450 m/min), offering extreme resistance to crater and flank wear.
Excellent chip control at low feeds. Prevents long "stringy" chips from damaging workpiece surfaces or spindles.
Minimal cutting pressure allows for consistent accuracy on delicate parts or slender shafts.
Technical Specifications
Insert Code Decoding: TNMG 160404R-FS
Triangle
Negative
Tolerance
Hole/Chip
0.4 Rad
RH-Finish
| Unit System | Designation | I.C. / Thickness | Radius |
|---|---|---|---|
| Metric (ISO) | TNMG 160404R-FS | 9.525 / 4.76 mm | 0.40 mm |
| Imperial (ANSI) | TNMG 331R-FS | 3/8" / 3/16" | 1/64" |
Recommended Cutting Parameters (TT8115 Grade)
| Material (ISO P) | Vc (Speed m/min) | fn (Feed mm/rev) |
|---|---|---|
| Carbon / Alloy Steel | 220 - 450 | 0.05 - 0.20 |
| Cast Steel | 200 - 380 | 0.08 - 0.25 |
Right-Hand System Match
Applications & Tool Compatibility
- Automotive: Final turning of transmission gears and high-tensile steel shafts.
- Precision Engineering: Ideal for threaded components and thin-walled tubes requiring low pressure.
- General Lathe Work: Universal choice for fine-finishing of all 10xx, 41xx, and 86xx series steels.
- Compatibility: Fits all ISO-standard TNMG 16 size right-hand holders (MTJNR, PSSNR, MTFNR).
TaeguTec Steel Grade Performance Chart
| Grade | Application | Coating | Cutting Speed |
|---|---|---|---|
| TT8115 | High-Speed Finishing | CVD Alumina | Highest |
| TT9225 | General Turning | CVD | Medium-High |
| TT8125 | Interrupted Cutting | CVD | Medium |
Why Machinists Choose TT8115?
The **TT8115** is TaeguTec's pinnacle for steel finishing efficiency. When cycle times matter and tool life can't be compromised, this CVD grade delivers stable performance at cutting speeds that would burn through standard carbide. The **FS geometry** ensures your chips never "nest," keeping your automated lathes running safely. With 6 cutting edges per insert, this TNMG geometry provides the lowest cost-per-part for high-volume steel finishing operations.
"Amazing finish on 4140 steel. We were able to jump from 250 to 400 m/min without losing tool life."
— Robert L., USA"Die beste Wahl für die Feinbearbeitung. Die Oberflächengüte ist erstklassig."
— Hans G., Germany"Eccellente controllo del truciolo a basse profondità di passata."
— Marco B., Italy"Predictable tool wear. Essential for our automated turning cells."
— Satoshi N., JapanFrequently Asked Questions
A: No. For stainless steel, we strongly recommend the PVD-coated TT9080 grade to avoid the chemical wear associated with ISO M materials.
A: The FS is optimized for light finishing. For best chip control, keep the depth of cut (ap) below 1.5mm.
A: While TT8115 is stable, it is optimized for high-speed continuous cuts. For heavy interruptions in steel, the TT8125 grade is a tougher alternative.
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.