Kennametal 5591912 WNMG332MP Carbide Turning Insert

Product Description

The KENNAMETAL 5591912 is a solid carbide turning insert with an ANSI insert code of WNMG332MP and ISO code WNMG060408MP, belonging to the KENLOC series. It features a multilayer CVD coating — TiCN, Al2O3, and TiOCN — applied via MTCVD process and designated grade KCM25B. The 80-degree trigon shape (W) provides six cutting edges per insert. With a negative rake angle of 6 degrees, negative side clearance, and a chamfered and honed cutting edge, this insert is engineered for high toughness in steel cutting and moderate wear resistance in stainless steel applications. It handles roughing and medium machining operations.

This insert is suited for turning, facing, and boring operations on steel, stainless steel, superalloys, and titanium. The MP chip breaker geometry is designed to manage chip control across both roughing and medium machining passes. It is typically installed in KENLOC-style toolholders that accept WNMG-style inserts using a clamp or pin holding method. This makes it a practical choice for production turning environments where tool changes must be fast and repeatable across multiple cutting edges.

Key Features

• Multilayer CVD coating: TiCN, Al2O3, and TiOCN for wear resistance across varied workpiece materials
• Grade KCM25B — high toughness for steel (P), moderate wear resistance and toughness for stainless steel (M)
• Six cutting edges per insert for extended tool life and lower per-edge cost
• MP chip breaker supports both roughing and medium machining operations
• Neutral hand insert suitable for use in both right-hand and left-hand toolholders
• Clamp and pin holding method compatible with KENLOC toolholder system

Compatibility

Designed for use in KENLOC-series toolholders accepting WNMG-style inserts with clamp or pin clamping. Suitable for turning, facing, and boring of steel, stainless steel, superalloys, and titanium workpieces. ANSI standard WNMG332 and ISO standard WNMG060408 fitment.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secure before seating or replacing the insert. Inspect the insert pocket and clamping pin for wear or debris prior to installation. Follow the toolholder manufacturer guidelines for proper clamp torque and seating confirmation before resuming cutting operations.