Seco 74028775 Cutoff Insert Carbide T25M 0.098 in

Product Description

The SECO 74028775 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Manufactured to the 150.10 series specification, this single-end insert features a 0.098-inch cutting width and a right-hand lead angle of 6 degrees. The grade T25M substrate is coated via CVD with a TiC/TiCN/TiN multilayer stack, providing wear resistance and thermal stability across a broad range of workpiece materials. Clamp-style insert holding keeps the insert seated securely under the lateral forces generated during cutoff work. Licensed machinists and toolroom technicians are the typical installers.

This insert is suited for cutoff and parting applications on a universal range of workpiece materials, reflecting a primary workpiece material code of O. The 6-degree relief angle and 0.007-inch corner radius reduce edge chipping during interrupted cuts and on difficult-to-machine alloys. The chipbreaker designation 14 is engineered to break chips efficiently in the narrow groove produced by a 0.098-inch wide insert, reducing chip packing and tool pressure. Typical use cases include production turning on horizontal and slant-bed lathes where repeatable, close-tolerance parting cuts are required.

Key Features

• Carbide substrate with CVD-applied TiC/TiCN/TiN multilayer coating for extended tool life
• 0.098-inch cutting width with a width tolerance of plus or minus 0.002 inches
• Right-hand lead angle of 6 degrees reduces lateral cutting forces during parting
• 6-degree relief angle and 0.007-inch corner radius minimize edge chipping
• Chipbreaker geometry 14 promotes reliable chip evacuation in narrow grooves
• Clamp-style holding method provides secure, repeatable insert seating

Compatibility

Designed as an OEM-style replacement insert for 150.10 series cutoff and parting toolholders requiring a 2.5 insert size code, right-hand, single-end configuration.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Use the correct clamp key to seat and torque the clamping screw; do not use impact tools on insert clamps. Verify insert orientation and lead angle direction match the toolholder specification before resuming cuts.