Sumitomo 19PWBPR Turning Insert Tcmt Triangle Carbide

Product Description

The SUMITOMO 19PWBPR is a solid carbide turning insert designed for precision metal-cutting operations on CNC lathes and turning centers. Manufactured to the TCMT insert style with a 60-degree triangle shape, this insert carries the AC630M grade designation and features a CVD-applied aluminum oxide (Al2O3) coating that provides thermal resistance and wear protection at the cutting edge. The neutral hand orientation makes it suitable for standard right-hand toolholders. Key cutting geometry includes an 8-degree rake angle, a 7-degree relief angle, and a 1/64-inch (0.0156 inch) corner radius. It is held in place via screw clamping and conforms to both ANSI and ISO 13399 standards, with the ISO code TCMT110204N-SU.

This insert is engineered for turning applications where surface finish and edge consistency are critical. The ESU chip breaker geometry is suited for light-to-medium roughing and finishing passes. The Al2O3 CVD coating makes it particularly effective when machining stainless steel and other ISO M-group workpiece materials. It is used by machinists, toolroom technicians, and CNC operators in job shops, production environments, and manufacturing facilities requiring reliable, repeatable cutting performance.

Key Features

• AC630M grade with CVD Al2O3 coating for enhanced heat and wear resistance
• TCMT insert style with 60-degree triangle shape and neutral hand orientation
• ESU chip breaker geometry for controlled chip formation during turning
• 1/64-inch corner radius (0.0156 inch) for fine-tolerance finishing passes
• Screw-clamp holding method for rigid, repeatable insert positioning
• Conforms to ANSI and ISO 13399 standards; ISO code TCMT110204N-SU

Compatibility

Designed for use in TCMT-style screw-clamp turning toolholders accepting a 1/4-inch inscribed circle insert. Compatible with ISO M-group workpiece materials including stainless steel, as indicated by the secondary workpiece material code M.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer to secure the clamping screw. Inspect the insert pocket and clamping screw for wear or debris before installing a new insert to ensure proper seating and edge stability.