Kennametal 4109767 Grooving Insert KCU25 Solid Carbide Altin

Product Description

The KENNAMETAL 4109767 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and turning operations on CNC lathes and turning centers. Manufactured to the NG insert style with a KCU25 grade substrate and an AlTiN coating applied via PVD process, this insert delivers heat and wear resistance in demanding cutting applications. The left-hand orientation and K chip breaker geometry suit controlled grooving passes at a cutting width of 1.19 mm (0.0469 inches) and a maximum depth of cut of 1.91 mm (0.0752 inches). Installation requires a compatible Top Notch clamp-style toolholder. Machining professionals and toolroom technicians specify this insert for precision grooving work.

This insert is suited for grooving operations in ferrous and non-ferrous materials where a tight cutting width and controlled chip formation are required. The double-end configuration allows for extended service life per insert. The insert size 3047 with seat size 3 fits into Top Notch series toolholders designed for that seat designation. Typical applications include OD grooving, undercut profiling, and narrow parting passes on production turning equipment in job shop and manufacturing environments.

Key Features

• Solid carbide substrate with KCU25 manufacturer grade for wear resistance in demanding cuts
• AlTiN coating via PVD process provides thermal barrier and extended tool life
• Left-hand insert orientation with K chip breaker geometry for controlled chip evacuation
• 1.19 mm cutting width with a maximum depth of cut of 1.91 mm
• Double-end insert design extends usable life per unit
• Clamp-style holding method compatible with Top Notch series toolholders

Compatibility

Designed for use with Top Notch series clamp-style grooving toolholders accepting insert seat size 3 and insert size 3047. Reference MSC/Manufacturer Number NG3047R/LK for toolholder cross-reference. Consult KENNAMETAL Top Notch toolholder documentation to confirm seat compatibility before installation.

Installation Notes

This insert is installed by a machinist or toolroom technician into a compatible Top Notch series clamping toolholder. Power down and lock out the machine spindle before changing inserts. Use the correct torque driver for the clamp screw as specified in the toolholder manufacturer documentation — do not overtighten. Inspect the insert seat for debris or damage before seating the insert to ensure proper contact and accurate cutting geometry.