Kyocera TSJ00974 Turning Insert DNMG331HQ TN60 Cermet

Product Description

The KYOCERA TSJ00974 is a cermet turning insert in the DNMG331HQ geometry, designed for precision metal-cutting operations on CNC lathes and turning centers. It features a 55-degree diamond insert shape, a neutral hand orientation, and a TiCN plus NbC coating classification listed as uncoated process with a TN60 manufacturer grade cermet substrate. The insert carries a 0.0156-inch corner radius, an inscribed circle of 0.375 inches, and an insert length of 0.914 inches. The HQ chip breaker geometry and honed cutting edge style make this insert well-suited to finishing and semi-finishing passes. Licensed machinists and CNC operators handling production turning work will find it appropriate for demanding dimensional tolerances on steel and stainless steel workpieces.

This insert is primarily applied to external turning, boring, and copying operations. Primary workpiece material is steel, with stainless steel listed as the secondary workpiece material. It carries material grade designations of P01, P10, and P20, indicating suitability across a range from precision finishing to light roughing cuts on ferrous materials. The ISO insert code is DNMG110404HQ and the industry standard number is DNMG331HQTN60. The insert conforms to both ANSI and ISO standards and is classified under UNSPSC code 23242105. This is a multi-use insert compatible with boring, copying, and external turning applications.

Key Features

• Cermet substrate with TN60 grade for wear resistance on steel and stainless steel
• 55-degree diamond insert shape (shape code D) with negative rake angle of -15 degrees
• HQ chip breaker with honed cutting edge for controlled chip formation in finishing cuts
• 4 cutting edges per insert for extended tool life per unit
• Maximum depth of cut of 0.3047 inches suitable for semi-finishing passes
• Compatible with clamp and pin insert holding methods
• Meets ANSI and ISO standards; ISO code DNMG110404HQ

Compatibility

Designed for use in toolholders accepting DNMG-style inserts with clamp or pin holding methods. Compatible applications include external turning, boring, and copying on steel (P01, P10, P20 grade workpieces) and stainless steel. Conforms to ANSI and ISO insert standards for DNMG geometry.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the turret is in a safe indexed position before seating or replacing inserts. Use the appropriate torque wrench and clamping hardware specified for the toolholder to secure the insert without over-tightening. Inspect the insert pocket and seating surface for chips or debris before mounting to maintain accurate tool geometry.