The Trend DWSCP8FC is a Double-sided site and workshop bench stone ideal for up to 3 inch plane irons and chisels The unique clearance channels produce faster cleaner cut with precision flatness and unique diamond shaped surface prevents snagging when sharpening small or pointed tooling Grades are marked on stone Fine 1000 grit 15 micron and coarse 300 grit 50 micron and is guaranteed for five years Recommended use with Trend lapping fluid to prevent clogging or rusting and assist in keeping tools clean - use with no pressure Ideal for flattening chisels and plane blades as well as achieving a shaving edge in seconds the precision flatness gives the ability to also sharpen spindle knives in house Complete with pouch cleaning block and non-slip mat