Iscar 5505127 TNMG432TF IC907 Carbide Turning Insert

Product Description

The ISCAR 5505127 is a TNMG432TF IC907 grade solid carbide turning insert from the Isoturn series, designed for precision external and internal turning operations on CNC lathes and turning centers. The insert features a PVD-applied TiAlN and TiN dual coating over an IC907 carbide substrate, delivering strong wear resistance and thermal stability at the cutting edge. The triangular 60-degree geometry with a positive rake and a 1/32 inch corner radius (0.0310 inches) supports clean chip formation across a range of workpiece materials. Licensed machinists and CNC turning specialists are the primary installers of this insert type.

This insert is suited for turning hardened steels, stainless steels, high-temperature alloys, and a broad range of ferrous and non-ferrous metals, corresponding to ISO workpiece material codes H, K, M, N, P, and S. The TF chip breaker geometry is optimized for consistent chip control in medium turning applications. It fits standard TNMG-style insert pockets and is held in place via clamp and pin style toolholders. The Isoturn series targets both roughing and finishing passes where edge stability and coating adhesion are critical.

Key Features

• IC907 grade solid carbide substrate with PVD TiAlN and TiN dual coating for thermal and abrasion resistance
• TNMG432TF geometry: 60-degree triangle, positive rake, TF chip breaker
• 0.5000 inch inscribed circle with a maximum depth of cut of 0.1570 inches
• 1/32 inch (0.0310 inch) corner radius for controlled surface finish in medium turning
• Compatible with clamp and pin style TNMG insert toolholders
• Meets ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style replacement for TNMG432TF insert pockets accepting clamp and pin holding methods. Compatible with ISO workpiece material grades C7 and C8. Suitable for turning hardened steels, stainless, and high-temperature alloys in the H, K, M, N, P, and S ISO material classifications.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine before changing inserts. Inspect the insert pocket and seat for chips or debris before seating the new insert, as contamination can cause micro-fractures at the cutting edge. Follow the toolholder manufacturer torque guidelines for the clamping screw to avoid cracking the insert body.