Sandvik Coromant 5725894 Turning Insert Cpmt 1125 Coroturn 111

Product Description

The SANDVIK COROMANT 5725894 is a solid carbide turning insert designed for precision external and internal turning operations on CNC lathes and turning centers. Carrying the ISO designation CPMT 09 T3 02-UM 1125, this insert features a PVD-applied TiAlN and AlCr2O3 multilayer coating that supports cutting performance in steel and high-temperature alloy applications. The diamond-shaped 80-degree included angle provides a strong cutting edge geometry, while the UM chip breaker promotes controlled chip formation at moderate to high feed rates. With a 3/8-inch inscribed circle and a 0.0079-inch (0.20 mm) corner radius, this insert is suited for finish to semi-finish turning passes. It is held by screw clamping and is indexed neutral hand.

This insert is intended for use in CoroTurn 111 series toolholders configured for CPMT-style screw-on inserts. Primary workpiece material is steel (ISO material code P), with secondary suitability for stainless steel, superalloys, and titanium (ISO codes M, P, and S). Typical applications include shaft turning, facing, and profiling operations in aerospace, energy, and general machining environments. Licensed machinists and CNC operators working in production or job-shop settings are the primary installers of this insert type.

Key Features

• PVD-coated TiAlN and AlCr2O3 multilayer construction for wear resistance in steel and superalloy cutting
• 80-degree diamond insert shape (Shape Code C) for strong edge with versatile entry angle capability
• UM chip breaker geometry optimized for controlled chip evacuation at moderate feed rates
• Screw-clamping retention (CPMT style) for repeatable indexing and secure seating in the toolholder pocket
• Neutral hand orientation accommodates standard right-hand and left-hand toolholder configurations
• 2 usable cutting edges per insert for extended tooling value per piece

Compatibility

Designed for use in CoroTurn 111 series toolholders accepting CPMT-style inserts with a screw-on clamping method. Tolerance code M and clearance code P apply. Compatible toolholders must match the CPMT 09 T3 insert seat geometry.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key torque wrench per the toolholder manufacturer's clamping specification when securing the insert screw. Inspect the toolholder pocket seat for chips or wear before seating a new insert to ensure proper contact and runout.