Like having an entire sharpening workbench, right in your pocket, the Blademedic can tackle it all. From tackle and serrated blades, to just about any knife in your arsenal. Tungsten Carbide can help in just three or four strokes and it will restore your blade Ceramic Sharpening Rods polish to a finished edge in three or four strokes Serrated Knife Sharpeneris designed to get inside even the smallest serrations Diamond Tapered Rod for fast reconditioning and maintenance Sharpening angles are pre-set at 22.5deg to achieve a 45deg inclusive angle Diamond 600 grit Ceramic 1000 grit