The Naniwa sharpening stone is an exciting new Japanese waterstone from Naniwa. They have upgraded their process to make the old Super Stones even better. The tighter controls of grit particle size far exceeds the old standers employed by Naniwa resulting in a stone that has superior uniformity and therefore cuts more smoothly and cleanly. Available at Westcountry Machinery 4 Wood.
Westcountry Machinery 4 Wood is based in Cornwall, delivery is available across the UK.