Kennametal 1855576 NG3062K KT315 Grooving Insert Cermet

Product Description

The KENNAMETAL 1855576 is a cermet grooving insert in the Top Notch series, designed for external grooving and turning operations on CNC lathes and turning centers. Grade KT315 cermet features a PVD-applied TiN/TiCN/TiN multilayer coating that improves wear resistance and edge integrity during interrupted and continuous cuts. The insert has a 1.58 mm cutting width, a maximum depth of cut of 2.39 mm, and a right-hand orientation. A positive rake angle of 10 degrees and a K-style chip breaker promote clean chip evacuation on medium to fine finishing passes. This insert is sized NG3062K and carries a 55-degree included angle with a 0.19 mm corner radius.

This insert is suited for finish grooving and light-duty profiling of steel, stainless steel, and cast iron workpieces where tight dimensional control is required. The cermet substrate and PVD coating make it a strong choice for high-speed, low-feed finishing applications where surface finish quality is a priority. It fits toolholders in the Top Notch series that accept the NG-style insert geometry. Machinists and CNC operators in production and job-shop environments are the primary users.

Key Features

• KT315 cermet grade with PVD TiN/TiCN/TiN multilayer coating for extended wear resistance
• 1.58 mm cutting width and up to 2.39 mm maximum depth of cut
• Positive rake angle (10 degrees) with K-style chip breaker for controlled chip flow
• Right-hand insert orientation for standard external grooving setups
• 0.19 mm corner radius suited for fine-detail grooves and undercuts
• NG insert style in Top Notch series for broad toolholder compatibility within the series

Compatibility

Designed for use in Top Notch series toolholders that accept the NG-style insert geometry. Consult the Top Notch toolholder catalog to confirm specific holder compatibility before ordering.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine fully stopped and in a safe, locked-out state before insert indexing or replacement. Use the appropriate torx or clamp screw driver as specified by the toolholder manufacturer to seat the insert securely without overtightening. Verify insert orientation and seating before resuming operation. Inspect the insert pocket and clamping mechanism for wear or debris prior to each insert change.