Kennametal 3753554 TNMG666RN KCP25 Carbide Turning Insert

Product Description

The KENNAMETAL 3753554 is a TNMG666RN solid carbide turning insert finished with a multilayer MTCVD TiCN and Al2O3 coating in the KCP25 grade. Designed for the KENLOC clamping system, this insert features a 60-degree triangular shape with a neutral hand orientation and a negative rake and side clearance geometry. The KCP25 grade delivers moderate wear resistance paired with toughness, making it well suited for interrupted and continuous cuts in steel and cast iron. With six usable cutting edges and a chamfered and honed cutting edge style, this insert offers extended service life per insert consumed. Licensed machinists and CNC turning specialists are the primary installers of this type of consumable tooling.

This insert is intended for roughing and medium machining operations including turning, facing, and boring. It performs on primary workpiece materials classified under the P group (steel) and N group (cast iron and non-ferrous metals). The ANSI insert code TNMG666 and ISO insert code TNMG330924 allow direct cross-referencing with equivalent insert specifications across tooling catalogs. The RN chip breaker geometry supports chip control across a range of feed and depth-of-cut conditions typical in production turning environments. This insert is compatible with KENLOC series toolholders that accept clamp and pin holding methods.

Key Features

• KCP25 grade with multilayer MTCVD TiCN and Al2O3 CVD coating for wear resistance and toughness in steel and cast iron
• 60-degree triangle (T) insert shape with negative rake and zero-degree relief angle for stable, rigid cutting geometry
• Six cutting edges per insert, chamfered and honed edge prep for consistent performance
• RN chip breaker optimized for roughing and medium machining chip control
• Neutral hand orientation suits both right-hand and left-hand KENLOC toolholders
• ANSI and ISO standards compliant for straightforward replacement and cross-referencing

Compatibility

Designed for use in KENLOC series toolholders that accept clamp and pin insert holding methods. Compatible with ANSI insert code TNMG666 and ISO insert code TNMG330924 seat specifications. Suitable for multi-use turning, facing, and boring applications on steel and cast iron workpieces.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or indexing the insert. Use the correct KENLOC clamp and pin hardware specified for this insert size to ensure proper seating and clamping force. Inspect the insert pocket and seating surfaces for debris or damage before installing a new edge to prevent premature insert failure.