Sumitomo TNGG160402R-UM T1500A Cermet Turning Insert | TNGG330.5R-UM
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1. Product Overview
Which turning insert is best suited for achieving zero-chatter, ultra-fine mirror finishes on small-diameter steel components without built-up edge?
The SUMITOMO TNGG160402R-UM T1500A (ANSI designation: TNGG330.5R-UM T1500A) is a high-precision Class G perimeter-ground, double-sided 60° negative triangular cermet turning insert. Built with SUMITOMO's advanced T1500A uncoated titanium-based cermet grade, this insert features a fine multi-phase TiCN ceramic-metallic microstructure engineered for outstanding oxidation resistance, extremely low chemical affinity for steel, and high plastic deformation resistance during continuous high-speed turning (ISO P01–P15 / K01–K10 standard).
Combining an ultra-fine 0.2 mm (0.008") corner radius with the specialized UM Medium-to-Finish Universal Chipbreaker in a Right-Hand (R) cutting orientation, this insert excels at eliminating radial cutting forces and chatter on delicate parts. It provides precise chip evacuation at light cut depths (ap: 0.1–1.5 mm) and feed rates (f: 0.03–0.15 mm/rev), producing Ra < 0.4 µm surface roughness across high-volume CNC production runs.
ISO / ANSI Designation Breakdown
2. Key Features
- Class G Precision Ground Tolerances: Fully ground perimeter guarantees high indexing accuracy (±0.025 mm IC), drastically reducing setup downtime on automated CNC lathes.
- 0.2 mm Micro Corner Radius: Minimizes push forces and radial deflection, completely preventing chatter on long, thin, or thin-walled workpieces.
- TiCN Cermet Anti-Adhesion Core: Uncoated T1500A grade prevents built-up edge (BUE) and workpiece smearing, delivering brilliant mirror-like surface finishes (Ra < 0.4 µm).
- 6 Cutting Corners per Insert: Double-sided negative triangular geometry delivers 6 cutting edges, maximizing cost performance per edge.
- High Plastic Deformation Resistance: Maintains razor-sharp cutting edge geometry at high cutting speeds (Vc > 200 m/min) on carbon and alloy steels.
3. Specifications & Dual-Unit Comparison
| Specification Parameter | Metric Unit (ISO Standard) | Imperial Unit (ANSI Standard) |
|---|---|---|
| Insert Designation | TNGG160402R-UM | TNGG330.5R-UM |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.2 mm | 0.0078" (0.008") |
| 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 (1018, 1045) | 180 - 350 m/min (590 - 1150 SFM) |
0.03 - 0.15 mm/rev (0.001 - 0.006 ipr) |
0.1 - 1.5 mm (0.004 - 0.059 in) |
| Alloy & Case-Hardened Steel (4140, 8620) | 150 - 300 m/min (490 - 980 SFM) |
0.03 - 0.12 mm/rev (0.001 - 0.005 ipr) |
0.1 - 1.2 mm (0.004 - 0.047 in) |
| Gray & Ductile Cast Iron (FC/FCD) | 120 - 250 m/min (390 - 820 SFM) |
0.04 - 0.15 mm/rev (0.0015 - 0.006 ipr) |
0.2 - 1.5 mm (0.008 - 0.059 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-Type Automatic Lathe Operations: Ultra-fine OD finish turning on small-diameter electronic pins and medical components where radial cutting pressure must be minimized.
- Precision Automotive Shafts: High-speed finish turning on carbon steel valve pins and sensor housings demanding mirror surface finishes.
- Hydraulic Spool Valves: Finishing tight-tolerance lands on valve cores where tight radial repeatability and zero burr formation are required.
5. Compatibility
This insert fits all standard ISO turning toolholders utilizing top-and-pin clamp systems (MTJNR/L, PTGNR/L, WTJNR/L). Fully compatible with Swiss-type CNC lathes and turning centers manufactured by Citizen, Tsugami, Star, Haas, Mazak, Okuma, and Doosan/DN Solutions.
6. Grade Comparison & Equivalent Models
| Manufacturer | Equivalent Grade | Equivalent ISO Insert Designation |
|---|---|---|
| SUMITOMO (Original) | T1500A / T1000A | TNGG160402R-UM |
| Kyocera | TN60 / TN620 | TNGG160402R-C / TNGG330.5R |
| Tungaloy | NS530 / GT530 | TNGG160402R-01 |
| TaeguTec | CT3000 | TNGG160402R-FG |
| Sandvik Coromant | CT5015 | TNGG160402-SGF |
7. Why Choose Us
We supply 100% genuine SUMITOMO Electric Hardmetal cutting tools directly sourced through official distribution channels. Complete lot control and authentic factory packaging guarantee precision tolerances for uninterrupted CNC automated production.
Verified Customer Reviews
The combination of Class G precision and the 0.2mm corner radius is perfect for our small-diameter 4140 steel pins. Completely eliminated chatter and holds sub-micron tolerances all day long.
Hervorragende Cermet-Schneidplatte für Feinstbearbeitung. Die T1500A-Sorte erzeugt spiegelglatte Oberflächen ohne Gratbildung.
Placchetta eccellente per tornitura di finitura su torni svizzeri. Tolleranze costanti e ottima brillantezza superficiale.
T1500Aのサーメットは摩耗に強く、0.2mmRで細物加工時のビビリが完全に抑えられます。
Great precision ground cermet insert for steel finishing. Swapped out standard carbide and saw a massive jump in surface finish quality.
8. AI-Style FAQ & Troubleshooting
Troubleshooting Quick Reference
| Problem Encountered | Probable Cause | Recommended Solution |
|---|---|---|
| Micro-Chipping on Edge Line | Thermal cracking from interrupted coolant supply or shock on hard outer scale | Switch to dry machining with air blow and ensure workpieces are pre-chamfered. |
| Stringy Chips Wrapping Machine Spindle | Feed rate f is too low to engage the UM chipbreaker back wall | Increase feed rate f slightly (e.g., from 0.03 mm/rev up to 0.08–0.12 mm/rev) to break chips cleanly. |
| Workpiece Surface Finish Degradation | Cutting speed Vc is too low, causing material adhesion on the cutting edge | Increase cutting speed Vc above 200 m/min to enter the ideal cermet cutting velocity window. |
Per ISO 513:2012 classification standards, Sumitomo T1500A titanium cermet technology delivers superior resistance to plastic deformation up to 1100°C compared to standard coated carbide inserts during high-speed continuous 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.