Suitable for various household knives, such as scissor, kitchen knives, and other woodworking tools The roughsurface can be used for tool cutting, while the finesurface is used for tool polishing and daily care This diamond-coated double-sided sharpener is 10times more efficient than ordinary sharpeners, providing you with a quickly and easily way to sharpen your knives and tools The coarse 200 / 400 or 600grit side sharpens dull knives and the fine 1000grit / 1200grit side polishes and honing edges for sharply precisions The ABSplastic base ensures stability and slip resistance Small, lightweight, and portable