At the boundary between fine grit finishing stone and medium grit workhorse this 3k Chosera water stone can fill several roles in the typical sharpening progression. For many kitchen applications a 3k edge is a versatile and durable edge for a wide variety of tasks. For enthusiasts looking to push the limits of keenness, a 3k stone can segue to much finer stones such as the 5k or even the 10k for the most refined edges possible. A quick soak or splash of water is recommended for normal use. Don't perma soak them. These stones are 210mm x 70mm x 20mm.