WIDIA Triangle Turning Insert: TPU321

The WIDIA Triangle Turning Insert TPU321 is used for general turning, facing, and profiling operations on metal workpieces. Its triangular shape provides three cutting edges for cost-effective machining. It is suitable for use in lathes and CNC turning centers across industries such as automotive, aerospace, and general engineering.

The WIDIA TPUN160304 insert has the designation TPUN160304, which indicates a triangle shape with a 16 mm inscribed circle, 3.97 mm thickness, and a 0.4 mm nose radius. It is part of the TPU321 series and carries the manufacturer part number 4170866. This insert is designed for indexable turning applications.

You can source WIDIA turning inserts worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the TPU321/TPUN160304 insert (MPN 4170866).

To select the correct WIDIA triangle turning insert, match the insert designation (TPU321 or TPUN160304) to your tool holder's pocket size and clamping mechanism. Verify the inscribed circle, thickness, and nose radius against your machining requirements. Consult the WIDIA catalog for material-specific grade recommendations. 3G Electric can assist with sourcing the correct insert.