Tungaloy 6820941 Pcbn Turning Insert CCMW32.52 BX330

Product Description

The TUNGALOY 6820941 is a Polycrystalline Cubic Boron Nitride (PCBN) turning insert engineered for high-performance machining of hard materials. Part of the 2QP Mini-Tip series, it carries an ISO code of CCMW32.52 and a manufacturer grade of BX330. The insert features an 80-degree diamond shape, a positive rake geometry, and a honed cutting edge for clean, consistent cuts. With two cutting edges and a flat-top chip breaker design, it delivers repeatable performance in demanding turning operations. Licensed machinists and CNC operators use this insert in production environments where hardened steels and similar difficult-to-machine alloys are the primary workpiece material.

This insert is suited for turning, facing, and boring operations on hard materials, designated by primary workpiece material code H. The CCMW32.52 designation places it in a well-established size class, making it a practical fit for toolholders and mini-tip pockets designed around that standard. Its fine grain PCBN substrate and uncoated bright finish are matched to applications where coating buildup would compromise dimensional accuracy or where extreme hardness of the substrate alone provides sufficient wear resistance at elevated cutting speeds.

Key Features

• PCBN insert material with fine grain structure for hardened workpiece applications
• 80-degree diamond insert shape (shape code C) with positive rake and 0-degree rake angle
• Honed cutting edge style for edge integrity during hard-part turning
• Two cutting edges with flat-top chip breaker geometry
• Screw-holding method compatible with standard CCMW-style mini-tip toolholders
• Multi-use capability: turning, facing, and boring in a single insert

Compatibility

Designed for use in CCMW-style screw-clamp toolholders accepting a 3/8-inch inscribed circle mini-tip insert per ANSI and ISO standards. Verify toolholder pocket geometry and clearance angle requirements before installation.

Installation Notes

Installation of indexable turning inserts should be performed by a qualified machinist or CNC tooling technician with the machine powered down and the spindle locked. Use the manufacturer-specified torque driver for the clamping screw to avoid seat distortion or insert fracture. Inspect the insert pocket and seating surface for chips or debris before seating the insert. PCBN inserts are brittle by nature; avoid impact loads and interrupted cuts unless the insert is rated for that application.