Sumitomo 196CBPU Carbide Turning Insert 3/8 in Ic Triangle

Product Description

The SUMITOMO 196CBPU is a TCMT-style solid carbide turning insert designed for precision metal cutting operations on CNC and manual lathes. Manufactured to ANSI code TCMT32.52ESU and ISO code TCMT16T308N-SU, this insert carries a 3/8 inch inscribed circle, a 1/32 inch corner radius, and a 60-degree triangular geometry. The AC6030M grade features a CVD-applied coating optimized for demanding cutting applications. The positive rake angle and ESU chip breaker geometry promote controlled chip flow and reduced cutting forces. Installation uses a screw-holding method, making indexing straightforward at the machine.

This insert is suited for turning stainless steel workpieces in production and job-shop environments. The ESU chip breaker is engineered for stainless steel and other difficult-to-machine alloys where chip control and edge stability are critical. The TCMT insert style fits a wide range of standard screw-on toolholders with C-style clearance and M-tolerance seating. Both CNC machinists and manual lathe operators working ferrous and stainless applications will find this insert applicable to finishing and semi-finishing passes where a tight corner radius and controlled chip formation are required.

Key Features

• Solid carbide construction with CVD coating for wear resistance on stainless steel
• ESU chip breaker geometry for controlled chip flow in difficult-to-machine materials
• 3/8 inch inscribed circle with 60-degree triangular shape provides three usable cutting edges
• 1/32 inch corner radius suited for semi-finishing and finishing operations
• Positive rake angle reduces cutting forces and tool pressure
• Screw-holding method ensures secure, repeatable indexing in compatible toolholders

Compatibility

Designed for use in standard TCMT-style screw-on turning toolholders with C clearance and M tolerance specifications, per ANSI and ISO 13399 standards.

Installation Notes

Installation and indexing of carbide turning inserts should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key to torque the clamping screw to the toolholder manufacturer's specification — do not overtighten, as this can fracture the insert. Inspect the insert seat and clamping components for chips or debris before seating a new insert.