These flat, untempered glass plates measure 220mm x 100mm x 10mm and have beveled edges for an extended lifespan. When paired with adhesive-backed abrasives, they are a quick and cost-effective way of flattening dry Japanese water stones. Using flat stones allows the woodworker to flatten the backs of their blades, as well as produce evenly sharpened bevels.

Attaching abrasive sandpaper to the plate also allows the user to regrind the bevels of chisels, plane blades and knives where excessive wear, rusting or chipping has occurred. The abrasive sheets can be used wet or dry and are of the same width as the glass plate to maximise usage of the sheet.