Seco 02505955 TPUN220412T F40M Carbide Milling Insert

Product Description

The SECO 02505955 is a solid carbide triangular milling insert carrying manufacturer grade F40M and ANSI/ISO designation TPUN220412T. Coated with TiAlN and TiN via a PVD process, it is engineered for interrupted and continuous milling operations where thermal resistance and edge retention are critical. The insert features a neutral rake angle, a T-Land cutting edge style, and 3 usable cutting edges per insert. With an inscribed circle of 0.5 inches and a corner radius of 0.047 inches, it suits moderate depth-of-cut applications in production milling environments. Licensed machinists and CNC tooling technicians are the primary installers.

This insert is suited for milling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium, making it a versatile option across general machining and aerospace-type applications. It is designed for use in wedge-clamp style toolholders and is compatible with cutter series R220.17-22 and R220.47. Typical applications include face milling and shoulder milling on CNC machining centers in both production and job-shop environments. The neutral hand designation means it fits standard right-hand and left-hand configurations without modification.

Key Features

• Solid carbide fine-grain substrate for high hardness and wear resistance
• TiAlN and TiN dual-layer PVD coating for thermal protection and extended tool life
• 3 cutting edges per insert reduces per-edge tooling cost
• T-Land cutting edge style provides added edge strength for interrupted cuts
• Neutral rake and neutral hand — fits standard wedge-clamp toolholders without modification
• Broad material compatibility: steel, cast iron, superalloys, titanium, and non-ferrous metals

Compatibility

Compatible with SECO cutter series R220.17-22 and R220.47 using wedge-clamp insert holding. ANSI and ISO code TPUN220412T. Insert size code 220412, series TPUN-22.

Installation Notes

Installation is performed by a qualified CNC tooling technician or machinist. Always power down and lock out the spindle before changing inserts. Seat the insert fully against the pocket locating surfaces before engaging the wedge clamp, and verify clamp torque per the toolholder manufacturer's specifications. Inspect the insert pocket for chips or debris before seating a new insert to prevent micro-fractures at the cutting edge.