Keep your valuable tools in peak condition! Choose from 250/1000 (Rockler #20549), 800/4000 (Rockler #20542), and 1000/6000 (Rockler #47506) combination stones. Waterstone Holder sold separately (shown on left, Rockler #47530). For preliminary sharpening where chips exist or bevel angle need to be changed, use the 250/1000 waterstone. To remove smaller nicks and do a finish sharpening of woodworking chisels and other tools, the 800/4000 combination is the best choice. Finally, use the 1000/6000 waterstone for creating a polished edge. The Nagura Stone (shown on right, sold separately, Rockler #47522 ) forms a paste on finer grit Waterstones to speed and enhance polishing. Use with the 6000 grit stone.