Kennametal 3754006 SNMG543RN KCP40 Turning Insert

Product Description

The KENNAMETAL 3754006 is a solid carbide turning insert in the SNMG543RN geometry, grade KCP40, part of the KENLOC series. It features a multilayer CVD coating of TiN, TiCN, and Al2O3 applied by MTCVD process, delivering a combination of high toughness and moderate wear resistance suited to interrupted and continuous cuts. The insert carries an 0.625 inch inscribed circle, a 0.047 inch corner radius, and a 0.25 inch thickness. With 8 cutting edges and a neutral hand orientation, it offers efficient use across a full tool life. Licensed machinists and CNC operators working steel and stainless steel applications rely on this insert for roughing and medium machining operations.

This insert is designed for turning, facing, and boring operations on steel (ISO P) and stainless steel (ISO M) workpieces. The RN chip breaker geometry supports roughing and medium machining cycles. Its negative rake and negative side clearance geometry make it appropriate for use in rigid, high-stability setups typical of production turning centers and CNC lathes. It is held in place using clamp or pin-style toolholders compatible with SNMG-style seats. The KENLOC series is a well-established line for indexable turning applications in manufacturing and job shop environments.

Key Features

• KCP40 grade with multilayer CVD TiN/TiCN/Al2O3 coating for toughness and wear resistance on steel and stainless steel
• RN chip breaker geometry supports roughing and medium machining operations
• 8 cutting edges per insert for extended tool life and cost efficiency
• Neutral hand orientation for flexible toolholder compatibility
• Chamfered and honed cutting edge style for edge stability under load
• Compatible with clamp and pin insert holding methods

Compatibility

Designed for use in SNMG-style toolholders compatible with the KENLOC series, using clamp or pin holding methods. Suitable for turning, facing, and boring of steel and stainless steel workpieces per ISO material groups P and M.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Use the appropriate torque wrench and fastener specified for the toolholder to secure the clamp or pin without over-tightening. Inspect the insert seat for chips or debris before seating a new edge, and confirm the insert is fully seated before returning the machine to operation.