TaeguTec TDJ2-15R TT8020 Double-Ended Parting and Grooving Insert | 10 Pcs/Box
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TaeguTec TDJ2-15R TT8020 Inserts
Double-Ended Parting, Grooving & Cut-Off | TT8020 PVD Coated Grade | Box of 10 Pcs
"Which double-ended 2mm parting and grooving insert with a 15-degree lead angle and PVD-coated TT8020 grade is best for stable cut-off operations, deep grooving, and reliable chip control in stainless steels and alloy steels?"
The TaeguTec TDJ2-15R TT8020 is an engineered double-ended indexable insert designed specifically for high-efficiency parting off, external grooving, and face profiling across stainless steels (ISO M) and alloy steels (ISO P). Powered by TaeguTec's advanced TT8020 PVD coated carbide grade, this insert features a tough, fracture-resistant tungsten carbide substrate combined with an ultra-thin, smooth physical vapor deposition (PVD) coating layer. Unlike thicker CVD coatings that can round off acute cutting edges, PVD technology maintains razor-sharp edge geometry, providing exceptional resistance to thermal shock, built-up edge (BUE), and notch wear during gummy stainless steel machining. Featuring a 2.0mm cutting width (CW), a 15-degree lead angle (15R) for smooth cutting entry, and an integrated J-type positive chipbreaker geometry, it minimizes cutting resistance, prevents workpiece deflection, and curls chips effectively to avoid jamming in deep grooves. Whether you are expanding your inventory with TaeguTec negative turning inserts, comparing turning configurations in TaeguTec TNMG, TaeguTec CNMG, and TaeguTec DNMG collections, or analyzing foundational principles via our guides on positive vs. negative angle inserts, carbide insert nose radius, grade cross reference, chipbreaker families, stainless steel speed and feed guide, inserts by material, inserts by operation, and top global CNC insert brands, the TDJ2-15R TT8020 guarantees maximum tool economy and predictable shop floor performance.
Core Engineering Advantages
TT8020 PVD Coated Grade
Specialized PVD coating over tough carbide substrate provides superior edge toughness and thermal shock resistance for stainless and alloy steels.
Double-Ended Economy
Dual cutting edges maximize insert utility, lowering cost-per-part during high-volume parting off and grooving operations.
15-Degree Lead Angle & J-Chipbreaker
Optimized geometry ensures clean entry, reduced cutting forces, and reliable chip evacuation in deep or narrow part profiles.
Model Designation Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent (Approx.) |
|---|---|---|
| Cutting Width (CW) | 2.00 mm | 0.0787" (~5/64") |
| Corner Radius (RE) | 0.20 mm | 0.0079" (~0.008") |
| Insert Length (INSL) | 20.00 mm | 0.7874" (~25/32") |
| Max Depth of Cut (CDX) | 19.00 mm | 0.7480" (~3/4") |
| Grade & Coating | TT8020 (PVD Coated Carbide) | Stainless & Alloy Steel PVD Grade |
Recommended Cutting Parameters
*Values are starting recommendations for parting, cut-off, and grooving passes with TT8020 PVD grade.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Austenitic Stainless Steels (M - 304 / 316L) | 120 - 200 m/min | 0.03 - 0.07 mm/rev |
| Carbon & Low Alloy Steels (P - 1045 / 4140) | 160 - 260 m/min | 0.04 - 0.08 mm/rev |
| Free Cutting & Structural Steels | 180 - 300 m/min | 0.04 - 0.08 mm/rev |
Industrial Applications
- Parting Off & Cut-Off Operations: Precision 2mm width parting blade insert engineered for minimal material loss and smooth center cutting on bar stock and shafts.
- External Grooving & Profiling: 15-degree right-hand lead angle enables efficient shoulder profiling and deep groove machining without edge chipping.
- Stainless Steel & Alloy Steel Processing: TT8020 PVD grade resists built-up edge and thermal wear during demanding stainless steel cut-off tasks.
TaeguTec Grade Selection Matrix
Selecting the optimal TaeguTec parting and grooving grade:
- TT8020 (Featured - PVD Coated Grade): Specialized PVD coated carbide grade optimized for stainless steels (ISO M) and alloy steels, providing exceptional edge toughness and resistance to thermal shock.
- TT9080 (PVD Coated Tough Grade): Highly ductile PVD grade designed for interrupted cuts, low-carbon steels, and difficult-to-machine superalloys.
- K10 (Uncoated Grade): Uncoated carbide grade engineered specifically for non-ferrous materials such as aluminum, copper, and brass.
Why Machinists Choose Our Store
100% Genuine Guarantee
Directly sourced original TaeguTec factory-sealed packages (10 pcs/box).
Same-Day Dispatch
In-stock cutting tools ship rapidly to keep your CNC spindles turning.
Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: What is the primary application of the TT8020 grade?
A: TT8020 is a PVD coated carbide grade engineered specifically for parting off, grooving, and cut-off operations in stainless steels and alloy steels, offering excellent thermal shock resistance and edge toughness.
Q: How many cutting edges does the TDJ2-15R insert provide?
A: The TDJ2-15R is a double-ended parting insert featuring 2 precision indexable cutting edges per insert, doubling your tool economy.
Q: How many pieces are included in each box?
A: Each factory-sealed box contains 10 genuine TaeguTec TDJ2-15R TT8020 inserts.
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.