Commercial grade ground and polished discs from 1/4" to 22" diameter are available to meet your requirements. Plate thickness from cover slides a fraction of a millimeter to heavier pieces more than 3/4" are available. The reference table includes the standard sizes. Optical grade discs must be specified. Rough cut discs must be specified if desired.
Commercial grade plates are available up to 22 inches measured diagonally. Ground and polished plates are available in many thicknesses with the most common sizes shown in the table. Virtually any dimension required can be manufactured by QSI. Optical grade plates must be specified. Rough cut plates must be specified if desired.