Sandvik Coromant 5751283 Turning Insert Spmt 1125

Product Description

The SANDVIK COROMANT 5751283 is a solid carbide turning insert in the SPMT style, designed for precision metal cutting on CNC lathes and turning centers. It carries ISO designation SPMT 09 T3 08-UM 1125 and features a dual-layer TiAlN and AlCr2O3 coating for heat resistance and extended tool life in demanding turning applications. The square insert shape (S) with a 90-degree included angle and 11-degree relief angle (clearance code P) delivers reliable chip control through the UM chip breaker geometry. Holding method is screw-on, suited for positive-rake toolholders compatible with SPMT-style pockets. Licensed machinists and CNC operators install this insert as a direct production or replacement cutting edge.

This insert is suited for turning operations on ferrous and hardened materials where TiAlN and AlCr2O3 coatings provide oxidation resistance at elevated cutting temperatures. Typical applications include finish and semi-finish turning on steel and cast iron. The UM chip breaker geometry supports a range of feed rates and depths of cut within the parameters of the 1125 grade. It is sold individually per piece with a minimum order quantity of 10 units.

Key Features

• ISO code SPMT 09 T3 08-UM 1125 for direct toolholder cross-reference
• Dual-layer TiAlN and AlCr2O3 coating for elevated-temperature wear resistance
• Square insert shape with 90-degree included angle and 11-degree relief angle
• UM chip breaker geometry for consistent chip control across a range of feeds
• Screw-on holding method compatible with SPMT-style positive-rake pockets
• Manufacturer grade 1125 carbide substrate for toughness and coating adhesion

Compatibility

Designed as a direct-fit replacement for toolholders accepting SPMT-style square carbide inserts with screw-on retention, tolerance code M, and clearance code P, as identified by ISO designation SPMT 09 T3 08-UM 1125.

Installation Notes

Insert replacement is performed by a qualified machinist or CNC toolroom technician. Power down and lock out the machine spindle before accessing the toolholder pocket. Use the appropriate Torx or hex key to remove the clamping screw, seat the insert fully in the pocket, and torque the screw to the toolholder manufacturer's specification. Inspect the pocket seating surface for chips or wear before installing a new insert.