Kennametal 4109911 Grooving Insert NR3047 KCU25 Carbide

Product Description

The KENNAMETAL 4109911 is a solid carbide grooving insert in the Top Notch series, designed for precision grooving and parting operations on CNC lathes and turning centers. It carries a KCU25 manufacturer grade with a PVD-applied AlTiN coating, delivering hardness and thermal resistance suited to a wide range of workpiece materials. The insert features a 2.39 mm cutting width and a maximum depth of cut of 3.81 mm, with a full corner radius of 1.19 mm. Cutting height measures 8.74 mm and overall length is 22.48 mm. This right-hand insert is held in place via a clamp-style toolholder and is sized to the 3047 insert standard.

This insert is used in metal turning applications where controlled grooving, undercutting, or parting is required. It is suited for both roughing and finishing passes within its rated depth range of 3.00 to 4.00 mm. The AlTiN coating makes it a strong candidate for dry or semi-dry machining of hardened steels, stainless alloys, and cast iron. Machinists running production or job-shop turning operations on manual or CNC equipment will find this insert compatible with Top Notch series clamp-style toolholders.

Key Features

• Solid carbide construction with PVD AlTiN coating for elevated heat and wear resistance
• 2.39 mm cutting width with a full corner radius of 1.19 mm for consistent groove geometry
• Maximum depth of cut of 3.81 mm, rated range 3.00 to 4.00 mm
• Right-hand cutting orientation, clamp-style insert holding method
• KCU25 grade, material grade C2 and C6 classification
• Top Notch series insert sizing (3047) for direct toolholder compatibility

Compatibility

Designed for use with Top Notch series clamp-style grooving toolholders accepting a 3047 insert size. Consult the toolholder manufacturer specifications to confirm insert fit before installation.

Installation Notes

Grooving inserts should be installed by a qualified machinist following the toolholder manufacturer torque and clamping procedures. Ensure the machine spindle is fully stopped and the turret is locked before seating or replacing the insert. Inspect the clamp and toolholder seat for debris or wear before installing a new insert. Follow applicable shop safety standards and machine guarding requirements during all insert changes.