REX-CUT's mounted points have multiple layers of non-woven cotton fiber and AlO2 or SiC abrasives pressed and bonded into various shapes and sizes. Ideal for mold and die repair and maintenance, and capable of reaching deep into channels for smooth, controlled operation, with virtually no vibration. Available in two bonds: MTX, where more metal removal is required; and GFX: for light metal removal, cleaning, and polishing. www.rexcut.com