This Naniwa Professional Sharpening Stone with #600 grit is ideal for sharpening kitchen knives and other blades, providing 30% faster cutting than Super Stones and excellent performance on the hardest steels. It requires only a light soaking for effective use and lasts 2x longer for time-saving upkeep. This professional sharpening stone is a trusted choice for experienced craftspeople who demand quick sharpening, maximum longevity, and superior performance. With a durable rubber base and superior cutting speed, it offers reliable sharpening with increased accuracy. #600 grit for fast wear and new bevels Dimensions: 210mm (L) x 70mm (W) x 20mm (H) We stock a range of Naniwa products for knife sharpening. They have become the gold standard for excellent quality abrasive stones designed for professional chefs. If you love Japanese steel, choosing Naniwa stones is your best bet for sharper edges.