Kennametal 4137020 Grooving Insert KCP25 Carbide Tin

Product Description

The KENNAMETAL 4137020 is a solid carbide grooving insert designed for precision grooving and parting operations on CNC lathes and turning centers. Featuring a KCP25 manufacturer grade substrate with a CVD-applied TiN finish, this insert delivers consistent cutting performance across a range of metalworking applications. It carries a neutral hand orientation with a 3.05 mm cutting width and a maximum depth of cut of 3.50 mm. The GMN chip breaker geometry promotes controlled chip evacuation during groove profiling. Machinists and CNC operators working in production turning environments install this insert as a direct, indexed replacement in compatible A4 series toolholders.

This insert is suited for grooving operations on ferrous and non-ferrous workpieces in both production and job-shop turning environments. The A4G-U insert style fits A4 series grooving systems and is appropriate for external grooving at moderate depths. Its neutral rake angle and 0-degree lead angle make it suitable for straight-plunge grooving without directional bias. The multi-use designation indicates the insert is compatible with more than one cutting position within the toolholder seat.

Key Features

• KCP25 grade carbide substrate with CVD TiN coating for wear resistance in steel and cast iron grooving
• 3.05 mm cutting width with a maximum depth of cut of 3.50 mm (depth range: 3.00 mm to 4.00 mm)
• GMN chip breaker geometry for controlled chip flow during plunge grooving
• Neutral hand and 0-degree rake angle for straight-plunge application without directional preference
• 0.20 mm corner radius for groove profile definition and edge strength
• Multi-use insert — indexes to a second cutting edge to extend service life

Compatibility

Designed as an OEM-style replacement insert for A4 series grooving toolholders. Catalog reference number A4G0305M03U02GMN. Verify toolholder seat geometry and insert pocket dimensions before installation to confirm proper seating and clamping.

Installation Notes

Installation is performed by qualified CNC machinists or tool-crib technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench or clamping key specified for the toolholder to avoid over-torquing the insert clamping screw. Inspect the insert pocket and clamping surfaces for chips or debris before seating the new insert.