Surface lapping smooths a glass substrate using a type of cutting tool shank called a lap. The surface of the lap is covered with abrasive materials and scrubs the workpiece to reach the desired thickness or shape and can remove damage caused by previous manufacturing operations, such as sawing. Polishing is a finishing process that uses specially designed polishing cloths or abrasive films to smooth the surface of the workpiece to the desired finish. At Swift Glass, we offer surface lapping and polishing to deliver finishes on glass pieces to precise specifications.