Naniwa's Advance Super Combination Stones are true splash and go stones. Get them wet and they are ready for use, no soaking required. These resin bonded stones share the user friendly, hard wearing, splash and go characteristics of the Naniwa Advance Super Stones, but with the added convenience of having two grits on one stone. Get all the grits you need in a minimal number of stones. Available in 4 Grit Combinations 400/2000 1000/3000 2000/5000 3000/8000 The Advance Super Combination Stones are 210mm long and 70mm wide (about 8-1/4" x 2-3/4"). The same footprint as Naniwa's Advance Super Stones, this is an excellent size for sharpening almost anything, from knives to woodworking tools. The stones are 20mm (about 3/4") thick in total, each grit is 10mm thick.
