Taegutec TDJ3 TT7220 Carbide Grooving Insert for Steel Parting (10pcs)
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TaeguTec TDJ 3 TT7220
High-Wear Resistance 3.0mm Insert for High-Speed Steel & Cast Iron Parting
Product Overview
"Which 3.0mm parting insert offers the best tool life when cutting high-tensile carbon steel at high spindle speeds?"
The TaeguTec TDJ 3 TT7220 is engineered for maximum productivity in ISO P (Steel) and ISO K (Cast Iron) applications. Featuring a 3.0mm neutral width, this insert provides superior stability and straightness for deep parting and external grooving. The TT7220 grade utilizes a specialized PVD coating with high hardness and oxidation resistance, specifically designed to combat the abrasive wear common in cast iron and the high heat generated during high-speed steel cutting. Combined with the TDJ chipbreaker, it ensures excellent chip curling and breakage, preventing the "long stringer" chips that damage surface finishes and hinder automation.
Core Advantages
The TT7220 grade is optimized for abrasive resistance, significantly extending tool life in gray and nodular cast iron.
Maintains edge integrity at higher Vc (cutting speeds), allowing for reduced cycle times and increased throughput.
Neutral 0° design eliminates lateral forces, ensuring perfect flatness and straightness in deep grooves.
Technical Specifications
Model Decoding: TDJ 3 TT7220
T-Clamp Sharp
3.0mm Width
Neutral (0°)
Steel/Iron Grade
| Unit System | Width (W) | Metric Model | Imperial Model |
|---|---|---|---|
| Metric | 3.00 mm | TDJ 3 | - |
| Imperial | 0.118" | - | TDJ 118 |
Recommended Cutting Parameters (TT7220)
| Material Group | Speed (Vc m/min) | Feed (fn mm/rev) |
|---|---|---|
| Carbon Steel (ISO P) | 120 - 220 | 0.08 - 0.22 |
| Cast Iron (ISO K) | 100 - 180 | 0.10 - 0.25 |
Pairing Recommendation
Shop T-Clamp Holders (Seat Size 3) →Applications & Compatibility
- General Parting: The standard for parting off steel bars up to 60mm diameter.
- Deep Grooving: Neutral geometry prevents "snaking" or tool deflection in deep radial cuts.
- High Volume Production: TT7220 grade provides highly predictable tool life for lights-out manufacturing.
- Machine Compatibility: Fits standard TaeguTec T-Clamp blocks and blades (Seat Size 3).
TaeguTec Grade Benchmarking
| Grade | Primary ISO | Coating Type | Best For |
|---|---|---|---|
| TT7220 | P, K | Advanced PVD | Abrasive Wear & High-Speed Steel/Iron |
| TT9080 | P, M, K | Tough PVD | Interrupted Cuts & General Toughness |
| TT8020 | M, S | Heat-Resistant PVD | Stainless Steel & Super Alloys |
Why Choose TaeguTec Industrial Tooling
TaeguTec is a global leader in tungsten carbide technology. The TDJ 3 TT7220 represents the pinnacle of parting efficiency, balancing high removal rates with world-class surface finishes.
"TT7220 is a beast in Cast Iron. We doubled our tool life compared to the previous 'universal' grade we were using."
— David W., USA"Exzellente Standzeit bei C45 Stahl. Die Spankontrolle ist tadellos."
— Klaus M., Germany"Grado eccezionale per la ghisa. Ottima resistenza all'abrasione."
— Roberto G., Italy"High-speed parting is finally stable in our shop. Good value for money."
— Sato H., Japan"Chips curl perfectly into tight clocks. No more bird-nesting on the spindle."
— Alan P., UKFrequently Asked Questions
A: For interrupted cuts like square or hex bar, the TT9080 grade is generally more reliable due to its higher toughness. TT7220 is best for continuous, high-speed parting of round stock.
A: The TDJ geometry is primarily for radial parting and grooving. For multi-directional turning and grooving, consider the TDT or TDC series inserts.
A: Yes, neutral inserts will typically leave a small center "nub." If your part requires a flat face after parting, you should use the 6R/15R (Right Hand) or 6L/15L (Left Hand) lead-angle versions.
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.