• We offer a wide variety of Quartz Blanks in round, rectangular and square shapes. Most custom sizes are available according to your custom or standard specifications. Blanks could be manufactured to the customer's frequency range, whether in fundamental or overtone modes. Most surface finishes are available to typical specifications, including full polished surfaces, exhibiting a high degree of flatness control. Blanks are offered in most typical cuts, including A.T., B.T. cuts.