Kyocera TSJ00738 Turning Insert Dcmt TN60 Cermet

Product Description

The KYOCERA TSJ00738 is a cermet turning insert in a 55-degree diamond (DCMT) shape, designed for precision external turning, copying, and back boring operations on steel workpieces. Manufactured to ANSI and ISO standards, this insert carries the TN60 grade designation and features a TiCN plus NbC coating process classified as uncoated cermet, delivering the wear resistance and edge stability that cermet material grades are known for in finishing and semi-finishing steel cuts. The chip breaker geometry is designated HQ, with a honed cutting edge and a positive rake angle of 15 degrees, supporting clean, controlled chip formation at typical finishing depths. Two cutting edges are available per insert, and screw-type insert holding is used for secure clamping in compatible toolholders.

This insert is suited for steel turning applications in the P01, P10, and P20 material grade ranges, making it appropriate for finishing to light semi-finishing passes on low-alloy and carbon steels. Typical applications include external diameter turning, profile copying, and back boring where tight tolerances and surface finish quality are priorities. The insert style code is DCMT with a clearance code of C and tolerance code of M, consistent with standard precision-grade turning insert fitment. It is cataloged under ISO code DCMT11T304HQ and industry standard number DCMT3251HQTN60, and it belongs to the ISOI series.

Key Features

• Cermet insert material with TiCN and NbC composition for wear resistance in steel finishing
• TN60 manufacturer grade targeting P01, P10, and P20 steel workpiece materials
• 55-degree diamond insert shape (DCMT) with positive rake for reduced cutting forces
• HQ chip breaker with honed cutting edge style for surface finish control
• Two cutting edges per insert with screw-type holding method
• Multi-use capability: external turning, copying, and back boring

Compatibility

Designed as a direct-fit replacement or standard stock insert for DCMT-style screw-clamp toolholders accepting a 3/8-inch inscribed circle, 55-degree diamond insert with clearance code C and tolerance code M. Compatible ISO designation is DCMT11T304HQ; industry standard number is DCMT3251HQTN60. Verify toolholder pocket specifications before installation.

Installation Notes

Installation is performed by a machinist or tool crib technician using the appropriate torx or hex key for the insert clamping screw specified by the toolholder manufacturer. Ensure the spindle is fully stopped and the machine is locked out before indexing or replacing inserts. Seat the insert fully into the pocket and confirm the clamping screw is torqued per the toolholder manufacturer specification. Inspect the insert seat and screw threads for wear or debris before each insert change.