Conventional ceramic abrasive grain is irregular in shape. Instead of a clean, machining action, the grain "plows" through the metal, causing heat build-up, slower cutting and shorter life.

3M precision-shaped grain in Cubitron™ II discs is triangular shaped. As it wears, it continuously fractures to form sharp points that slice through the substrate, wear evenly and provide extra-long life and consistency.

Outstanding Stock Removal on a Range of Substrates
These discs are ideal for a broad range of applications focused primarily on stock removal, and are effective on a wide variety of substrates, including metals, composites, gelcoat, and whitewood. The C-weight paper backing is well suited for sanding applications where edge retention is not a primary requirement. For best results, pair with 3M™ Elite Random Orbital Sanders.

The Productivity Advantage of 3M™ Stikit™ Discs
The 3M™ Stikit™ system eliminates the time-consuming task of applying adhesive to the disc backing. These high-quality, coated abrasive products come ready to use with a pressure sensitive adhesive coating on the backside so that attaching them to your disc pad is as simple as pressing on a sticker. And because the adhesive is pressure sensitive, the disc can be peeled off of the disc pad just as easily, leaving a clean surface for your next disc. A Stikit™ disc must be pressed onto a 3M™ Stikit™ backup pad (also called a disc pad and sold separately) that is attached to a disc sander, random orbital sander, or stationary disc sander.

Learn more about our 3M Cubitron™ II paper discs (PDF, 2 Mb)