Professional replacement wheels that fit most Italian (Maxx, Oregon, Tecomec, Speed Sharp) and Chinese (Carlton, TimberTuff, Northern Tool) chain grinders . These wheels are made of electrofused crystallized aluminum oxide in a chromium oxide solution. These wheels are soft enough to remove material quickly, but hard enough to keep their shape. Oregon grinding stones do not come dressed. We recommend the purchase of a dressing brick (DB2) and wheel contour template (ORF 35596)