Achieve longer tool life and lower cost per component with the Widia SDMT1204PDRMH WU20PM carbide insert. This premium insert delivers exceptional wear resistance and edge stability, making it ideal for light and general machining of steels, stainless steels, and high-temperature alloys.

  • Geometry: SDMT1204PDRMH (Square insert, 12.7 mm inscribed circle, 4 cutting edges)

  • Grade: WU20PM — micro-fine carbide substrate

  • Coating: TiAlN (Titanium Aluminium Nitride) PVD

  • Material Suitability: Steel, stainless steel, super-alloys

  • Machining Modes: Optimized for both dry and wet machining

  • Typical Applications: Face milling, light milling, general purpose machining

Why It’s a Best Seller

  • Less downtime: The TiAlN coating plus micro-fine carbide substrate combine to slow wear and boost tool life, keeping production running longer between insert changes.

  • Better surface finish: Sharp, stable cutting edges help you hit tighter tolerances with smoother finishes.

  • High wear resistance: Ideal for tougher materials and elevated temperatures — proven to outperform in stainless and alloy milling.

Applications

  • Automotive manufacturing – precision milling of components

  • Aerospace – handling high-temp superalloys with consistent performance

  • Die & Mold – clean finishes on tough steels

  • General Engineering – versatile enough for workshop variety

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Frequently Asked Questions

WU20PM is Widia’s universal micro-fine carbide grade with TiAlN PVD coating. It balances toughness and wear resistance, suitable for steel, stainless steel, and high-temp alloys.

Yes, WU20PM with TiAlN PVD is formulated to perform well in both dry and wet machining environments.

That refers to a square insert (SDMT), with an inscribed circle of 12.7 mm (1204), chipbreaker style “PDR”, and tolerance/clearance “MH.” It offers four cutting edges per insert.

It excels in machining steel, stainless steel, and superalloys — ideal for P20, M20, and S20 applications.

The TiAlN coating greatly improves heat and wear resistance, making it more durable and cost-effective over time, especially for high-temperature or abrasive materials.