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.
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.