Woodworkers of all skill levels are turning to Japanese waterstones to keep their tool edges sharp. This is because waterstones cut more aggressively, and a sharp edge can be achieved much faster. Waterstones also polish as they hone, allowing a mirror finish without the need for stropping or polishing compounds. Only water is needed to lubricate the cutting edge. 800 grit and overall size is 2-9/16" x 8-1/8" x 7/8".