Kennametal 1163286 VPGR331 K313 Profiling Insert

Product Description

The KENNAMETAL 1163286 is a solid carbide profiling and turning insert in the Top Notch series, designed for precision material removal on CNC lathes and turning centers. Manufactured to the VPGR331 standard with a K313 fine-grain carbide grade, this insert features a 3/8 inch inscribed circle, a 0.1875 inch thickness, and a 0.0156 inch corner radius. The uncoated WC-Co substrate is optimized for tight-tolerance profiling work. With a neutral hand orientation and positive rake geometry, it suits applications where clean, controlled cuts are required. Machinists and CNC operators in production and job-shop environments install this insert for external profiling and turning operations.

This insert is rated for primary workpiece materials including non-ferrous metals, superalloys, and titanium, making it well suited for aerospace, medical, and precision manufacturing environments. The VPGR331 geometry with a 35-degree included angle and 8-degree relief angle allows for access into tight contours during profiling passes. It uses a clamp-style holding method and delivers up to 0.2179 inches maximum depth of cut per pass. The insert conforms to ISO code VCGR160404 and VPGR331 standards, ensuring compatibility with toolholders designed for that geometry family.

Key Features

• Fine-grain K313 solid carbide grade for non-ferrous metals, superalloys, and titanium
• Uncoated WC-Co substrate for sharp, low-friction cutting edge performance
• Positive rake angle of 10 degrees reduces cutting forces during profiling passes
• 35-degree included angle with 8-degree relief angle enables contouring in restricted geometries
• Neutral hand orientation with clamp-style insert holding for secure seating
• Two cutting edges per insert for extended tooling economy

Compatibility

This insert conforms to VPGR331 and VCGR160404 standards and is designed for use in Top Notch series toolholders and other clamp-style holders engineered for VPGR331 geometry inserts. Verify toolholder seat pocket and clamping pin specifications before installation.

Installation Notes

Installation of carbide turning inserts should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before seating or replacing any insert. Use the correct torque driver for the clamping screw to avoid microfracture of the carbide body — refer to the toolholder manufacturer specifications for fastener torque values. Inspect the insert seat and clamping pin for debris or wear before securing the new insert.