Kennametal 3753558 VNMG433RN KCP25 Turning Insert

Product Description

The KENNAMETAL 3753558 is a VNMG433RN KCP25 grade solid carbide turning insert designed for precision metal removal in CNC turning operations. Coated with a multilayer TiCN and Al2O3 CVD coating applied via MTCVD process, this insert delivers moderate wear resistance combined with toughness across a broad range of workpiece materials. It features a 35-degree diamond (rhombic) insert shape, a neutral hand orientation, a negative rake angle, and a negative side clearance. The insert measures 22.14 mm in length with a 0.5-inch inscribed circle and a 3/64-inch corner radius. It is held in place by clamp or pin and is part of the KENLOC series. Four cutting edges are available per insert.

This insert is suited for roughing and medium machining operations on steel and cast iron workpieces. Typical applications include turning, facing, boring, back turning, and back boring on CNC lathes in both production and job-shop environments. The KCP25 grade is rated for steel (P) and aluminum and non-ferrous materials (N), offering a balance of wear resistance and toughness appropriate for moderate cutting conditions. Licensed machinists and CNC operators working in general metalworking, aerospace component machining, and mold and die production will find this insert appropriate for their applications.

Key Features

• KCP25 grade with multilayer TiCN and Al2O3 CVD coating for balanced wear resistance and toughness
• 35-degree diamond (rhombic) VNMG insert shape with negative rake and negative side clearance
• Four usable cutting edges per insert, extending tool life per unit cost
• Chamfered and honed cutting edge style reduces chipping during interrupted or variable-load cuts
• Compatible with clamp and pin insert holding methods for secure seating in KENLOC toolholders
• Rated for roughing and medium machining on steel, cast iron, aluminum, and non-ferrous materials

Compatibility

Designed for use in KENLOC series toolholders accepting VNMG insert geometry. Conforms to ANSI insert code VNMG433 and ISO insert code VNMG220412. Suitable for toolholders designed around clamp or pin holding methods for negative-rake VNMG inserts.

Installation Notes

Insert installation and replacement should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the CNC machine before indexing or replacing inserts. Use the appropriate torque wrench for clamping screws per the toolholder manufacturer specifications. Inspect the insert pocket and seating surfaces for chips or debris before seating a new insert to ensure proper contact and prevent premature edge failure.