3M Flexible Diamond Grinding Wheel 6440J White D30

Product Overview

The lanboon 3M Flexible Diamond Grinding Wheel 6440J Green D30 is specifically engineered for hard-to-grind materials. Featuring diamond abrasive that is metal-bonded to a flexible cloth backing, this grinding wheel delivers both exceptional durability and the ability to conform to complex contours. It is designed for use on rubber wheel attachments such as cushion polishing wheels and rubber slotted expander wheels (both sold separately), making it a versatile choice for precision finishing tasks.

Excels at Light-Pressure Grinding on Contoured Surfaces

By combining the cutting strength of diamond abrasive with a flexible, conformable backing, the 6440J Green D30 achieves refined finishes even on contoured surfaces. It performs best under light-pressure grinding conditions, which helps prevent surface damage while maintaining consistent material removal. This wheel is most suitable for blending and finish sanding of contours, and it is built to handle hard-to-grind surfaces including thermal sprays, carbides, composites, chilled iron, non-ferrous metals, and glass.

Built Tough, Finishes Fine

The diamond mineral particles on the 6440J Green D30 are adhered using a metal bond. Metal bonds are known for their toughness — they help retain the diamond abrasive particles, reduce wheel wear, and extend service life significantly compared to other bond types. The flexible cloth backing allows the wheel to adapt to complicated geometries and irregular shapes, ensuring uniform contact and consistent results across the entire work surface.

Key Specifications

Whether you are working on aerospace components, industrial tooling, or precision glass finishing, the 6440J Green D30 provides the toughness and finish quality demanded by professional applications.
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diamond grinding wheel 6440j