Kennametal 3652466 Turning Insert TPG321 Pcbn KB1630

Product Description

The KENNAMETAL 3652466 is a PCBN (polycrystalline cubic boron nitride) turning insert in the TPG321 geometry, part of the KENDEX series. It features a triangular insert shape with a 60-degree included angle, a 3/8-inch inscribed circle, and a 1/64-inch corner radius (0.0156 inches). The grade is KB1630, uncoated, with a chamfered and honed cutting edge style. This insert is designed for high wear-resistance applications in hard materials and super alloys. It carries a positive rake and positive side clearance with a flat-top chip breaker configuration. Licensed machinists and CNC turning specialists install this insert in rigid toolholders for precision metal removal.

The 3652466 is suited for turning, facing, and boring operations on hard materials such as cast iron and special or super alloys where high wear-resistance is required. Its multi-use design makes it applicable across a range of finishing and semi-finishing passes. With three cutting edges per insert and a neutral hand orientation, it fits standard TPG-style clamp-type toolholders used in production turning environments, including both CNC and manual lathes.

Key Features

• PCBN insert material (KB1630 grade) engineered for high wear-resistance in cast iron and super alloy machining
• Three cutting edges per insert for extended tool life and cost efficiency
• Flat-top chip breaker with chamfered and honed edge preparation
• Positive rake and positive side clearance geometry (Clearance Code P, Tolerance Code G)
• Maximum depth of cut of 0.2163 inches
• Multi-application compatibility: turning, facing, and boring

Compatibility

Designed as an OEM-style replacement insert for TPG-style clamp-held toolholders conforming to ANSI and ISO standards. ANSI Insert Code TPG321; ISO Insert Code TPG160304; ISO Code TPGN160304S01015MT.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct clamp and toolholder specified for the TPG insert style to ensure proper seating and clamping force. Inspect the pocket and clamp screw for wear or debris before installing a fresh cutting edge.