Kennametal 6710685 Turning Insert CNUX6674RRN KCP25B Carbide

Product Description

The KENNAMETAL 6710685 is a solid carbide turning insert manufactured to ANSI and ISO standards under the industry standard designation CNUX6674RRN. It carries the KCP25B manufacturer grade and features a multilayer CVD coating combining TiCN, Al2O3, and TiOCN applied via MTCVD process. The insert is diamond 80-degree shape with a negative rake, a clearance code of N, and a tolerance code of U. The 0.75 inch inscribed circle and 0.0625 inch corner radius suit medium to heavy material removal applications. Cutting edges are chamfered and honed. Licensed machinists and CNC operators install this insert in production turning, facing, and boring operations.

This insert is part of the FIX8 series and is designed for right-hand cutting applications. It is suited for use on steel and cast iron workpieces, corresponding to ISO workpiece material codes P and K. The CNUX6674RRN insert is appropriate for both roughing and semi-finishing passes where chip control and edge durability are priorities. It supports turning, facing, and boring operations on CNC lathes and turning centers in industrial production environments. With 4 cutting edges per insert, it offers multiple indexing positions before replacement.

Key Features

• KCP25B grade with multilayer MTCVD coating: TiCN, Al2O3, and TiOCN for wear and heat resistance
• Diamond 80-degree insert shape with negative rake for strength and versatility
• 4 cutting edges per insert for extended service life across multiple indexes
• 0.0625 inch corner radius with chamfered and honed cutting edge style
• Compatible with clamp and pin insert holding methods
• Rated for steel and cast iron workpieces per ISO material codes P and K

Compatibility

Designed for use in toolholders that accept CNUX-style inserts with a 3/4 inch inscribed circle and clamp or pin holding. Conforms to ANSI and ISO standards for CNUX insert geometry. ISO designation: CNUX191016RRN.

Installation Notes

Installation is performed by licensed machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque driver for the clamping screw to avoid overtightening, which can fracture the carbide. Inspect the toolholder pocket for damage or debris before seating the insert.