Kyocera TSJ89149 Indexable Drill Insert TCMT18HP TN60

Product Description

The KYOCERA TSJ89149 is a cermet uncoated indexable drill insert designed for precision metal cutting in drilling and boring operations. Formed in a 60-degree triangle shape with the TCMT style and TN60 manufacturer grade, this insert features a positive rake angle and a 7-degree relief angle that reduce cutting forces and promote clean chip evacuation. The inscribed circle measures 7/32 inches (0.2188 inches), insert thickness is 3/32 inches (0.0940 inches), and the corner radius is 1/32 inches. With three cutting edges per insert, it delivers extended service life per unit. Licensed machinists and tooling technicians install this insert in indexable drill toolholders on CNC and manual machine tools.

This insert is suited for steel machining applications, carrying primary workpiece material codes N and P. It fits within the SD series platform and conforms to ANSI code TCMT1.81.52HP TN60 and ISO code TCMT1.81.52HP. Material grades C2, C3, C4, C6, C7, and C8 apply, making it appropriate for a broad range of ferrous cutting conditions in both production and job-shop environments. The HP chipbreaker geometry is optimized for controlled chip formation during drilling cycles.

Key Features

• Cermet uncoated substrate with TN60 grade for steel cutting performance
• 60-degree triangle shape with 3 usable cutting edges for cost efficiency
• Positive rake and 7-degree relief angle reduce cutting forces
• HP chipbreaker for controlled chip formation and evacuation
• Conforms to ANSI and ISO insert standards for broad toolholder compatibility
• Neutral cutting direction suits standard drilling and boring setups

Compatibility

Designed as an OEM-style replacement insert for TCMT-style indexable drill toolholders within the SD series; compatible with material grades C2, C3, C4, C6, C7, and C8 applications per ANSI code TCMT1.81.52HP TN60 and ISO code TCMT1.81.52HP.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked before changing inserts. Use the appropriate torx or hex key specified by the toolholder manufacturer to secure the insert clamp to the correct seating torque per the toolholder documentation. Inspect the insert pocket and seating surfaces for debris or damage before seating the new insert. Do not exceed the recommended cutting parameters for the TN60 cermet grade when programming feed rates and speeds.