Dia-Sharpr 2.5″ Diamond Mini-Honer sharpener features an ergonomically designed handle that provides comfortable sharpening, deburring and honing in tight spaces. Easy access tip measures .033″ thick. Diamond surface measures 2.5″ x .75″. Fine (25 micron / 600 mesh) for a razor sharp edge. Sharpen with or without water, with no messy oils. Built to last for sustained performance.