Kyocera TSJ02820 Turning Insert TPGR321RB TN60 Cermet

Product Description

The KYOCERA TSJ02820 is a cermet-grade indexable turning insert in the TPGR style, designed for precision metal cutting in CNC and manual lathe applications. It carries the TN60 manufacturer grade with a TiCN plus NbC coating classification noted as uncoated in process, featuring a positive rake angle of 14 degrees and a honed cutting edge for consistent, controlled chip formation. The triangular insert shape provides three usable cutting edges, and the 1/64-inch corner radius supports fine finishing passes on steel and stainless steel workpieces. This insert is held by clamp-style toolholders and suits machinists and CNC operators working in production or job-shop environments.

The TSJ02820 is rated for external turning, boring, back boring, internal facing, and copying operations. Its primary workpiece material is steel, with secondary suitability for stainless steel, making it a practical choice for general-purpose turning in both production and maintenance machining. The insert conforms to ANSI and ISO standards and carries ISO code TPGR160304R-B with industry standard number TPGR321RBTN60. It is suited to light-to-moderate material removal rates in the P01, P10, and P20 material grade range.

Key Features

• Cermet insert material with TiCN plus NbC coating for wear resistance on steel and stainless steel
• Triangular shape with three cutting edges maximizes usable insert life
• Positive 14-degree rake angle reduces cutting forces and heat generation
• Honed cutting edge style for consistent surface finish on finishing and semi-finishing passes
• Compatible with clamp-style TPGR toolholders per ANSI and ISO standards
• Suitable for external turning, boring, back boring, internal facing, and copying operations

Compatibility

Designed for use in clamp-style TPGR-series indexable toolholders conforming to ANSI and ISO ISOI series standards. Compatible workpiece materials include steel (P code) and stainless steel (M code), with material grades P01, P10, and P20.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before indexing or replacing the insert. Seat the insert fully against the toolholder pocket and tighten the clamp fastener to the toolholder manufacturer's specified torque. Confirm insert seating and edge condition before resuming cutting operations.