A precision double sided diamond bench stone 6 inches x 2 inches complete with cleaning block and non slip mat fine 1000 grit 15 micron and coarse 300 grit 50 micron guaranteed for five years recommended use with trend lapping fluid to prevent clogging or rusting and assist in keeping tools clean ideal for flattening chisels and plane blades as well as achieving a shaving edge in seconds precision flatness substrate gives the ability to also sharpen spindle knives in house the fine grit is suita