Glass behaves differently from most engineering materials. Although it appears rigid and dimensionally stable, it is highly sensitive to tensile stress, localized heat, vibration, and improper cutting forces. A small variation in tool selection or machine setup can result in edge chipping, microcracks, poor dimensional accuracy, excessive kerf loss, or complete part failure. For hobbyists creating stained glass artwork, selecting the wrong cutting tool often results in uneven score lines, uncontrolled breaks, wasted material, and additional grinding. For manufacturers producing architectural glass, optical components, laboratory equipment, or electronic substrates, improper tool selection can increase scrap rates, reduce throughput, shorten tool life, and significantly raise production costs.

Diamond grinding wheels rarely stop cutting because the diamond abrasive has been completely consumed. In many precision grinding operations, cutting performance declines because the wheel becomes glazed. During glazing, worn diamond particles remain locked within the bond, preventing fresh abrasive from engaging the workpiece efficiently. Grinding forces increase, spindle load rises, surface finish deteriorates, and grinding temperatures become more difficult to control.