Sandvik Coromant 7859115 Turning Insert DCMT32.52-UF 4415

Product Description

The SANDVIK COROMANT 7859115 is a solid carbide turning insert in the DCMT style, designed for precision external turning operations on CNC lathes and turning centers. Carrying the manufacturer grade 4415 and a multilayer CVD coating of TiCN, Al2O3, and TiN, this insert delivers thermal resistance and wear protection suited to steel and cast iron machining. It features a 55-degree diamond shape, a 0.79 mm corner radius, and a neutral hand orientation. The UF chip breaker geometry targets finishing and light-to-medium roughing cuts where chip control and surface finish are critical priorities for machinists and toolroom technicians.

This insert is part of the CoroTurn 107 series, a platform built for external longitudinal turning, facing, and profiling in both production and job-shop environments. Primary workpiece material is steel (ISO P), with cast iron (ISO K) as the secondary application. The insert fits standard DCMT-style toolholders with clamp or screw holding methods and is appropriate for finishing passes on ferrous components where dimensional accuracy and surface quality are the main performance targets.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life on steel and cast iron
• 55-degree diamond insert shape (Shape Code D) for versatile profiling and turning geometry
• 0.79 mm corner radius (0.0313 inches) for finishing and light roughing applications
• UF chip breaker geometry promotes effective chip control in finishing cuts
• Neutral hand orientation compatible with a wide range of DCMT toolholder setups
• 2 cutting edges per insert for cost-effective indexing in production environments

Compatibility

Designed as a direct-fit replacement insert for DCMT-style toolholders using clamp or screw holding methods, as specified in the CoroTurn 107 series. ISO code DCMT 11 T3 08-UF 4415. Manufacturers catalog number: DCMT 3(2.5)2-UF 4415.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians following the toolholder manufacturer's indexing and torque procedures. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the toolholder pocket and clamping screw for wear or contamination before seating the new insert. Follow the insert manufacturer's recommended starting cutting parameters for the specific workpiece material before optimizing feed and speed.