Heatless Original Wheels (grey) are made of silicone carbide abrasive and unique, non-loading binder for rapid reduction through final shaping of non-precious, semi-precious, precious alloys, porcelain, acrylic, denture teeth and natural dentition, without generating excessive heat.
White Heatless Wheels are non-contaminating, aluminum oxide wheels that can be used on either porcelain or precious and semi-precious metal. They cut fast, run true, wear evenly, and won't ever clog.