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TaeguTec TDT 3E-0.4 TT9030
TaeguTec TDT 3E-0.4 TT9030 is a premium pressed double-ended threading/grooving insert (0.4 mm corner), with TiAlN tough grade coating, designed for external turning, grooving and threading in steels, stainless, and cast iron. Best-seller for its durability and consistent finish.
The TaeguTec TDT 3E-0.4 TT9030 is a high-performance, pressed double-ended insert engineered for precision threading, turning, and grooving operations. With a size of 3 mm and a 0.4 mm corner radius, it supports fine threading and precise groove control. The TT9030 grade, with a TiAlN-based coating, provides excellent resistance to wear, oxidation, and thermal stress—making it ideal even under demanding conditions.
Its working range allows depths-of-cut in the order of 0.07 to 0.15 mm and feed widths up to ~0.5 mm, depending on the grooving setup and orientation. The insert is suited for materials like steels, stainless steels, cast iron, and certain superalloys. With its robust design, it minimizes insert changes, keeps setup downtime low, and ensures repeatable high-quality surface finishes and thread/groove accuracy.
Hook / Attention Line
Cut more parts per insert — reduce your tooling cost per component with the TaeguTec TDT 3E-0.4 TT9030 — built for long life, repeatability, and stability under tough loads.
Key Features & Specs
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Geometry / Style: TDT pressed double-ended insert, 3 mm seat / size, with 0.4 mm corner radius for fine threading/grooving.
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Grade / Coating: TT9030 (TiAlN / tough grade) — highest in the threading line, offering excellent wear resistance and thermal stability.
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Cutting Parameters: ap (depth of cut) range ~0.07–0.15 mm, feed widths up to ~0.50 mm (depending on insert orientation and workpiece)
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Primary Applications: External turning, threading, face grooving, part-off / cutting-off in steels, stainless steels, cast irons.
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Workpiece materials: Ideal for general steels, stainless, superalloys, and cast materials.
Why It’s a Best Seller
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Less downtime — the tough TT9030 grade resists crater wear, meaning fewer insert changes mid-production.
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Better surface finish & consistency — the 0.4 mm corner radius and stable geometry help maintain controlled chip formation and consistent thread/groove profiles.
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High wear resistance + thermal stability — ideal in higher speeds or intermittent cuts, the TiAlN layer protects against oxidation and heat.
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Double-ended design — each insert gives two usable edges (depending on orientation), optimizing cost-efficiency.
🏭 Application Industries
This insert sees heavy use in:
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Automotive (engine parts, shafts, housings)
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Aerospace (smaller precision components, housings)
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Die & Mold (precision grooves, fine threads, tool components)
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General engineering / job shops (shafts, rods, flanges)
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Frequently Asked Questions
It performs best on general steels, stainless steels, cast iron, and some harder alloys. The tough TT9030 grade handles heat and wear well.
It’s a 3 mm insert (seat size) with a 0.4 mm corner radius, in a pressed double-ended form (TDT style).
Two usable edges (double-ended) — depending on orientation and your toolholder setup.
TT9030 is among the toughest threading/grooving grades in TaeguTec’s line: it provides excellent wear resistance and thermal stability, reducing frequency of insert changeovers.
Yes — the combination of geometry and coating gives it robustness in moderate interrupted cuts or stable threading/grooving even under demanding conditions.
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