Kennametal 1790169 Cutoff Insert KC5025 Carbide 2.2mm

Product Description

The KENNAMETAL 1790169 is a carbide cutoff insert in the A2 series, designed for parting and cut-off operations on CNC lathes and turning centers. It carries the KC5025 manufacturer grade with a TiAlN coating applied via PVD process, delivering wear resistance and thermal stability at the cutting edge. The insert features a 2.2 mm cutting width (0.0866 inches), a 4.75 mm cutting height (0.1870 inches), a neutral lead angle, and a CF chipbreaker geometry. It is held in place by a clamp-style toolholder and is suited for machinists and tooling technicians running production or job-shop turning applications.

This insert is intended for cut-off and grooving operations across a range of workpiece materials consistent with the C2 and C6 material grade designations. The CF chipbreaker geometry assists with chip control during parting cuts, reducing the risk of chip entanglement in the cut zone. It fits A2 series insert seats with a seat size of 2, making it a direct fit for compatible KENNAMETAL and A2-style clamp-type toolholders. Applications span general-purpose turning on ferrous and non-ferrous materials in both production and maintenance environments.

Key Features

• KC5025 carbide grade with TiAlN PVD coating for elevated wear and heat resistance
• 2.2 mm cutting width with CF chipbreaker for controlled chip formation during parting cuts
• Neutral lead angle and 2-degree relief angle for straight, balanced cut-off geometry
• A2 series, insert seat size 2 — clamp-held for rigid, repeatable positioning
• Corner radius of 0.0079 inches for a clean cutting edge profile
• Suitable for C2 and C6 material grade applications

Compatibility

Designed as a direct-fit replacement for A2 series clamp-style cut-off and grooving toolholders with an insert seat size of 2. Specific toolholder compatibility should be verified against KENNAMETAL A2 series toolholder documentation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine powered down and the spindle locked before changing inserts. Use the appropriate clamp screw torque as specified in the toolholder manufacturer documentation — do not overtighten, as this can crack the carbide insert. Inspect the insert seat and clamp for debris or wear before seating the insert. Follow the toolholder manufacturer indexing procedure to confirm proper edge engagement before resuming cutting operations.