Edge sharpness equivalent to majority of factory edges on knives, tools; Fine side the grit is Perfect for finishing and polishing the edge, make edge very sharp, and edge reflects light well. Perfect for light touch-ups to an already sharp.HIGH-GRADE WHETSTONE ENSURE EFFECTIVE SHARPENING RESULTS: sharpening stone is made from professional grade white corundum, corrosion-resistant, heat-resistant, edges and corners are clearly demarcated.600/1000 & 800/1200 GRINDSTONE IS SUITABLE FOR MOST GRINDING OPERATIONS, such as kitchen knives, kitchen shears, pocket knife, chef knife, porting knives, straight razor, cutting class knife grinding, precision tool, garden tools and art appliance, but EXCEPT serrated blades and ceramic knife etc.GUARANTEE THE SAFETY SHARPENING WITH NON-SLIP SILLICONE BASE: The non-slip silicone base holds the sharpening stone securely in place, so you never have to worry about the whetstone slipping off the counter.This fine grit is able to put an edge on a tool or knife that exceeds just about any commercial edge you'll find. This grit is very fine and sharpen very slowly. This is to be used after you've created an edge with more coarse grits. Instructions to use: