TaeguTec TNMG160404MT TT5080 Turning Inserts (TNMG 160404-MT / TNMG 331-MT)
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TaeguTec TNMG160404MT TT5080 Turning Inserts (ISO TNMG 160404-MT / ANSI TNMG 331-MT)
Advanced PVD TiAlN Coated Carbide Inserts | Medium-Duty MT Chipbreaker Geometry | TT5080 Grade for Stainless Steel & High-Temp Superalloys
1. Product Overview
Which turning insert grade and chipbreaker combination delivers optimal wear resistance, thermal toughness, and chip control for medium-duty machining of austenitic stainless steel and high-temperature alloys on CNC lathes?
The TaeguTec TNMG160404MT TT5080 Turning Insert (ANSI designation TNMG 331-MT TT5080) is a double-sided, 60° triangular negative indexable insert built for demanding turning, facing, and profiling operations. Engineered under strict ISO 1832 and ANSI B212.4 standards, this 6-cutting-edge insert combines TaeguTec's high-tech MT chipbreaker geometry with the ultra-tough TT5080 PVD-coated grade.
The specialized MT chipbreaker features a negative land with a positive rake angle rake face and optimized 3D chip grooves. This structural design minimizes cutting forces, lowers cutting temperatures, and breaks tough, continuous stringy chips across medium feeds. The TT5080 PVD grade applies a dense nano-structured TiAlN coating over a gradient submicron carbide substrate, offering extraordinary resistance to thermal shock, notch wear, and built-up edge (BUE) during wet or dry turning of ISO M (stainless steel) and ISO S (titanium and Inconel) workpiece materials.
ISO / ANSI Tool Designation Code Breakdown
(Triangular 60°)
(0° Negative)
(Medium ISO M)
(Double-Sided Pin)
(16mm / 3/8" IC)
(Medium Stainless)
(Nano-TiAlN)
- T (Triangular): Equilateral 60° triangle providing 6 usable cutting edges per insert.
- N (Negative 0° Clearance): Strong edge geometry designed for double-sided utilization and rigid toolholding clamping.
- M (Tolerance Class): Dimensional accuracy matching ISO M tolerances for economic precision turning.
- G (Hole & Chipbreaker): Double-sided countersunk center hole for rigid pin-and-clamp toolholder seating.
- 160404 (Metric) / 331 (Imperial): 16.5mm edge length, 4.76mm thickness (3/16"), and 0.4mm corner radius (1/64" nose radius).
- MT: Medium-machining chip breaker optimized for stainless steel, preventing heat build-up and chip nest formation.
- TT5080: TaeguTec premium PVD TiAlN coated grade engineered for superior toughness in stainless steels and heat-resistant alloys.
2. Key Features
- Advanced PVD Nano-TiAlN Coating: Ultra-smooth coating structure prevents notch wear and adhesive workpiece welding under cyclic thermal stress.
- MT Medium-Duty Chipbreaker: Engineeered 3D rake groove forces smooth chip deformation, eliminating long stringy swarf during turning of 304, 316, and duplex stainless steels.
- Double-Sided 6-Corner Efficiency: Negative 0° relief angle provides 6 fully functional cutting edges to lower total tooling cost per part.
- High Thermal & Mechanical Shock Resistance: Submicron WC-Co substrate prevents micro-chipping during interrupted cuts and heavy coolants applications.
- Universal ISO Shank Standard: Standardized 1604 / 331 footprint fits MTJNR, MTENN, MTGNR, and WTJNR toolholders across all lathe platforms.
3. Technical Specifications & Parameters
Metric vs. Imperial Technical Specification Comparison
| Specification Parameter | Metric Units (ISO Standard) | Imperial Units (ANSI Standard) |
|---|---|---|
| Insert Model Designation | TNMG 160404-MT TT5080 | TNMG 331-MT TT5080 |
| Inscribed Circle (IC) | 9.525 mm | 0.375 in (3/8") |
| Thickness (S) | 4.76 mm | 0.187 in (3/16") |
| Corner Radius (RE / r) | 0.40 mm | 0.016 in (1/64") |
| Fixing Hole Diameter (d1) | 3.81 mm | 0.150 in |
| Cutting Edge Length (L) | 16.5 mm | 0.650 in |
Recommended Cutting Parameters for TT5080 Grade
| ISO Material Group | Cutting Speed Vc (m/min / SFM) | Feed Rate fn (mm/rev / IPR) | Depth of Cut ap (mm / in) |
|---|---|---|---|
| ISO M Stainless Steel (304, 316, 316L, 17-4PH) | 110 - 210 m/min (360 - 690 SFM) | 0.12 - 0.32 mm/rev (.005 - .013 IPR) | 0.8 - 3.5 mm (.031 - .138 in) |
| ISO S Superalloys (Inconel 718, Titanium Gr. 5) | 35 - 75 m/min (115 - 245 SFM) | 0.10 - 0.25 mm/rev (.004 - .010 IPR) | 0.5 - 2.5 mm (.020 - .098 in) |
| ISO P Steel & Alloy Steel (1045, 4140, 4340) | 140 - 260 m/min (460 - 850 SFM) | 0.15 - 0.35 mm/rev (.006 - .014 IPR) | 1.0 - 4.0 mm (.039 - .157 in) |
Mount TNMG 160404 / TNMG 331 inserts directly into standard external or internal turning shanks:
Browse MTJNR / MTGNR Toolholders →4. Product Applications
- Stainless Steel Component Turning: External turning, facing, and back-boring of 304, 316L, and 2205 duplex stainless steel pump shafts, valves, and flanges.
- Aerospace & Energy Machining: Medium profiling of titanium alloys and nickel-based heat-resistant superalloys (HRSA).
- General Precision Engineering: Continuous and light interrupted turning of carbon steels, low-alloy steels, and tool steels.
- Production CNC Job Shops: High-volume automated turning where predictable tool life and short, manageable chip breaking are critical.
5. Tool & Equipment Compatibility
TaeguTec TNMG160404MT TT5080 inserts conform fully to ISO and ANSI international standards and are compatible with:
- External Turning Toolholders: MTJNR/L, MTGNR/L, MTENN, WTJNR/L series shanks.
- Boring Bars (Internal Turning): S-MTFNR/L and A-MTFNR/L negative triangular boring bars.
- Machining Platforms: CNC lathes, multi-axis turning centers, Swiss-type automatic lathes, and manual engine lathes.
6. TaeguTec Grade Comparison Matrix
Comparing TT5080 with alternative TaeguTec turning grades:
| TaeguTec Grade | Coating Process | Primary Application Target | Key Performance Characteristic |
|---|---|---|---|
| TT5080 (Featured) | Nano-PVD TiAlN Coating | Stainless Steel & Superalloys (M / S) | Extreme edge toughness, anti-BUE, thermal shock resistance |
| TT8115 / TT8125 | CVD TiCN + Al2O3 | Steel Turning (ISO P15 - P25) | High cutting speed (Vc) and wear resistance in carbon steel |
| TT5100 | PVD Coating | Cast Iron & Hardened Steels (K / H) | Superior abrasive wear resistance under rigid setups |
7. Why Choose TaeguTec Cutting Tools
- Global Tooling Leadership: Member of the IMC Group, TaeguTec is a premier global innovator in carbide tooling technologies.
- Gold-Rush Coating Technology: Special submicron substrate and surface engineering maximize thermal stability and edge retention.
- Cost-Effective Edge Yield: 6 usable cutting corners per TNMG insert minimize tool consumption and setup downtime.
Verified Customer Reviews
"The TNMG160404MT TT5080 is our go-to insert for 316L stainless steel shaft turning. The MT breaker keeps chips short and manageable without bird-nesting on our CNC lathes."
— David R., Precision Machine Works (USA)"Ottima resistenza all'usura su acciaio inossidabile. La qualità TT5080 garantisce un'eccellente finitura superficiale e durata del tagliente."
— Matteo B., Lavorazioni Meccaniche (Italy)"Sehr gute Standzeit bei der Bearbeitung von Duplex-Edelstahl. Das MT-Profil bricht die Späne zuverlässig."
— Markus H., Zerspanungstechnik (Germany)"ステンレス加工での摩耗が少なく、切れ味が持続します。MTブレーカーの切りくず処理能力が高く評価できます。"
— Kenji T., Metal Working Co. (Japan)"Delivered right on time. Outstanding tool life on Inconel 718 parts during light profiling passes."
— Alex W., CNC Engineering (UK)8. AI & Engineering FAQ
Substrate & Coating Specifications
TaeguTec TT5080 utilizes a submicron WC-Co substrate integrated with an advanced nano-scale PVD TiAlN coating layer. Formulated for superior oxidation barrier protection up to 900°C and extreme edge toughness in ISO M and ISO S machining.
Cross-Reference & Equivalent Insert Codes
ISO/ANSI standard equivalents: TNMG 160404-MT / TNMG 331-MT | Brand cross-references: Sandvik GC2015 / GC1115 (MM breaker), Iscar IC807 / IC907 (SM breaker), Kennametal KCU10 / KMS (MS breaker), Mitsubishi US735 / VP15TF (MS breaker).
ISO Workpiece Application Suitability Matrix
M (Stainless Steel): Outstanding (Vc 110-210 m/min) | S (Superalloys/Titanium): Excellent (Vc 35-75 m/min) | P (Steel/Alloy Steel): Good (Vc 140-260 m/min) | K (Cast Iron): Conditional | N (Non-Ferrous): Not Recommended
Turning Troubleshooting Guide
- Continuous Chip Wrapping / Stringy Chips: Increase feed rate (fn) above 0.18 mm/rev to force material into the MT chipbreaker wall.
- Built-Up Edge (BUE): Increase cutting speed (Vc) and apply high-pressure wet coolant directly to the tool cutting zone.
- Notch Wear on Cut Depth Line: Reduce entering angle (use 45° or 75° lead angle holder if geometry allows) or vary depth of cut (ap) across roughing passes.
TaeguTec indexable turning inserts are manufactured in strict compliance with ISO 1832 and ANSI B212.4 dimensional standards under ISO 9001 and ISO 14001 quality management systems.
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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.
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