Kennametal 1817659 Grooving Insert NFD3125KI KC5025 Carbide

Product Description

The KENNAMETAL 1817659 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and profiling operations on CNC lathes and turning centers. It carries a TiAlN coating applied via PVD process, which supports dry or near-dry cutting and holds up under elevated cutting temperatures. The insert has a right-hand orientation, a cutting width of 0.125 inches (3.18 mm), and a maximum depth of cut of 0.250 inches (6.35 mm). Manufactured to grade KC5025, it is suited for finishing and semi-finishing passes where consistent edge life and dimensional accuracy are priorities. Licensed machinists and CNC operators are the typical end users.

This insert is used in production turning environments for grooving, part-off preparation, and contour work on ferrous and non-ferrous materials. The NFD insert style with KI chip breaker geometry promotes controlled chip evacuation in shallow to medium-depth groove applications. The positive rake angle of 10 degrees reduces cutting forces, making it appropriate for workholding setups with moderate rigidity. It is sized for Top Notch series toolholders and fits standard grooving applications in the 5.00 mm to 10.00 mm maximum depth-of-cut range.

Key Features

• Solid carbide construction, manufacturer grade KC5025, material grade C2 and C6
• TiAlN coating via PVD process for elevated heat resistance and extended edge life
• 0.125 inch (3.18 mm) cutting width with a maximum depth of cut of 0.250 inches (6.35 mm)
• Positive rake angle of 10 degrees reduces cutting forces on moderate-rigidity setups
• KI chip breaker geometry for controlled chip flow in grooving operations
• Corner radius of 0.0075 inches (0.19 mm) for tight-tolerance groove profiling

Compatibility

Designed for use with Top Notch series grooving toolholders that accept the NFD3125 insert size. Confirm holder compatibility using the KENNAMETAL Top Notch system specifications before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC operator with the machine fully stopped and locked out per facility LOTO procedures. Seat the insert fully in the pocket and torque the clamping screw to the toolholder manufacturer specification using a calibrated torque driver. Do not exceed the maximum depth-of-cut range for this insert size. Inspect the insert edge and pocket for chips or contamination before each use.