SUMITOMO TNGG160404R-UM T1500A Cermet Turning Insert | TNGG331R-UM
Price shown is a starting point. Contact us for a precise quote based on your requirements.
1. Product Overview
Which precision-ground cermet turning insert provides the highest dimensional repeatability and mirror-like surface roughness when finishing carbon steels and soft cast irons on swiss-type or CNC lathes?
The SUMITOMO TNGG160404R-UM T1500A (ANSI designation: TNGG331R-UM T1500A) is a high-precision Class G perimeter-ground, double-sided 60° negative triangular cermet turning insert. Engineered with SUMITOMO's advanced T1500A uncoated titanium-based cermet grade, this insert features a multi-phase grain microstructure optimized for exceptional plastic deformation resistance, low thermal expansion, and non-stick cutting properties that eliminate edge build-up (BUE).
Incorporating the specialized UM Medium-to-Finish Universal Chipbreaker in a Right-Hand (R) cutting configuration, this insert integrates a 0.4 mm (0.016") corner radius with a polished variable-rake topography. This geometry provides versatile chip control across depth-of-cut ranges (ap: 0.2–2.0 mm), making it an industry benchmark for tight-tolerance automated lathe production.
ISO / ANSI Designation Breakdown
2. Key Features
- Class G Ground Precision: Fully peripheral ground edges guarantee tight indexing tolerance (±0.025 mm IC), ensuring exceptional part-to-part repeatability on automated CNC runs.
- TiCN Advanced Cermet Core: Uncoated T1500A cermet offers low chemical affinity for steel, achieving mirror surface finishes (Ra < 0.4 µm) without workpiece staining.
- UM Universal Chipbreaker: Smooth concave pocket design handles varying cut depths smoothly without generating fine flying wire-chips or chatter.
- Double-Sided 6 Corner Economy: High utility triangular geometry provides 6 sharp, indexable cutting corners to minimize consumable expenses per part.
- Extreme Edge Sharpness: Ground rake angle decreases cutting force requirements, making it ideal for slender shaft turning on Swiss-type CNC automatic lathes.
3. Specifications & Dual-Unit Comparison
| Specification Parameter | Metric Unit (ISO Standard) | Imperial Unit (ANSI Standard) |
|---|---|---|
| Insert Designation | TNGG160404R-UM | TNGG331R-UM |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.4 mm | 0.0156" (0.016") |
| Hole Diameter (D1) | 3.81 mm | 0.150" |
| Substrate Grade | Uncoated TiCN-based Cermet | Uncoated TiCN-based Cermet |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Low & Medium Carbon Steel (1020, 1045) | 180 - 350 m/min (590 - 1150 SFM) |
0.05 - 0.22 mm/rev (0.002 - 0.009 ipr) |
0.2 - 2.0 mm (0.008 - 0.079 in) |
| Alloy & Case-Hardened Steel (4140, 8620) | 150 - 300 m/min (490 - 980 SFM) |
0.05 - 0.18 mm/rev (0.002 - 0.007 ipr) |
0.2 - 1.5 mm (0.008 - 0.059 in) |
| Ductile & Gray Cast Iron (FC/FCD) | 120 - 250 m/min (390 - 820 SFM) |
0.06 - 0.20 mm/rev (0.0025 - 0.008 ipr) |
0.3 - 2.0 mm (0.012 - 0.079 in) |
Recommended Compatible Toolholders (ISO Top & Pin Clamp External Turning Holders):
Compatible with standard toolholders: MTJNR/L 2020K16, MTJNR/L 2525M16, WTJNR/L 2020K16, PTGNR/L 2020K16
Workpiece Material Matrix (ISO 513 Standard)
| ISO Material Group | Suitability | Common Grade Examples | Performance Rating |
|---|---|---|---|
| P (Steel Finishing) | Primary Choice | Carbon Steels (1045), Alloy Steels (4140, 4340), Free-Cutting Steels | ★★★★★ (Optimal) |
| K (Cast Iron Finishing) | Primary Choice | Gray Iron, Nodular Iron, Ductile Cast Iron | ★★★★☆ (Very Good) |
| M (Stainless Steel) | Conditional | Ferritic / Martensitic Stainless Steels (Dry Finishing Only) | ★★☆☆☆ (Limited) |
| S (Superalloys) | Not Recommended | Inconel, Titanium Alloys | ★☆☆☆☆ (Not Recommended) |
4. Applications
- Swiss-Lathe Precision Components: Turning high-accuracy small pins, bushings, and shafts requiring Class G radial tolerance standards.
- Automotive Steering Pins & Fittings: Continuous high-speed exterior turning on carbon steel rod components requiring mirror-like polish.
- Hydraulic Valve Spools: Finishing tight-tolerance lands on valve cores where edge wear directly impacts part sealing.
5. Compatibility
This insert fits standard ISO turning toolholders utilizing top-and-pin clamp configurations (MTJNR/L, PTGNR/L, WTJNR/L). Fully compatible with CNC turning centers, automatic swiss lathes, and multi-tasking machines from manufacturers including Citizen, Tsugami, Star, Haas, Mazak, and Doosan/DN Solutions.
6. Grade Comparison & Equivalent Models
| Manufacturer | Equivalent Grade | Equivalent ISO Insert Designation |
|---|---|---|
| SUMITOMO (Original) | T1500A / T1000A | TNGG160404R-UM |
| Kyocera | TN60 / TN620 | TNGG160404R-C / TNGG331R |
| Tungaloy | NS530 / GT530 | TNGG160404R-01 |
| TaeguTec | CT3000 | TNGG160404R-FG |
| Sandvik Coromant | CT5015 | TNGG160404-SGF |
7. Why Choose Us
We source authentic 100% original SUMITOMO Electric Hardmetal tooling directly through verified industrial distribution channels. Fully traceable lots ensure repeatable tolerances, eliminating sudden tool breakdown risks on continuous CNC shifts.
### Verified Customer ReviewsClass G ground tolerance makes a huge difference on our Swiss CNCs. We load a new TNGG160404R-UM insert and don't even need to offset the tool geometry. Surface quality on 1045 steel is phenomenal.
Sehr präzise geschliffene Wendeplatte. Die T1500A Cermet-Sorte erzeugt eine hervorragende Oberfläche ohne Aufbauschneiden.
Ottima placchetta per finitura su torni automatici. Il rompitruciolo UM lavora perfettamente con avanzamenti medi.
T1500Aのサーメットは研磨級（G級）精度が抜群で、長時間の連続加工でも寸法が狂いません。
Great precision ground insert for light finishing. The 0.4mm radius gives a sturdy corner that holds size for hundreds of steel shafts.
8. AI-Style FAQ & Troubleshooting
Troubleshooting Quick Reference
| Problem Encountered | Probable Cause | Recommended Solution |
|---|---|---|
| Corner Radius Micro-Chipping | Thermal shock from intermittent coolant or excessive mechanical shock | Switch to dry/air-blow turning and ensure cut entry is smooth without heavy scale. |
| Long Stringy Chips Wrapping Tool | Feed rate f is too low to engage the UM chipbreaker back wall | Increase feed rate f slightly (e.g., from 0.05 mm/rev up to 0.12–0.15 mm/rev). |
| Workpiece Dimensional Drift | Cutting speed Vc is too low, causing subtle material adhesion | Increase cutting speed Vc above 200 m/min to enter the ideal cermet cutting velocity zone. |
Per ISO 513:2012 classification standards, Sumitomo T1500A cermet technology provides superior resistance to plastic deformation up to 1100°C compared to conventional PVD carbide grades during high-speed steel finishing operations (ISO P01–P15 range).
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.