Naniwa Straightening Stone IO-1142 Grit 220

Estoy muy satisfecho con la compra, rectifica muy bien las piedraa. Sólo que si hay que darle mantenimiento a la planicidad. Pero excelente producto

既に持っているダイヤモンド砥石とPAの面直し砥石に比べ目詰まりが気になります。金剛砂使った方が良いんですかね？ あと小さいのでまだ持ってない人には砥石大のダイヤモンド砥石をお勧めしたいですね。

I was a bit alarmed with people saying there's was not flat and true. I trust the brand so ordered anyway, mine is spot on true and flat. Used it on 230 through to 12000 grit stones and it preformed perfectly. Quick word of warning don't use it to bevel the edges of the stone, I now have a neat one millimeter groove down the length of mine. It hasn't spoilt it's preformance, in fact I think it probably helps clear the slurry. After doing eight stones, some of which were quite dished it's still perfectly flat and apart from the afore mentioned groove shows no signs of wear. If you do get a stone that's off flat just take it outside with a bucket of water and rub it on a concrete paving slab, we have some in our garden.. Soon sorts it out, can do your sharpening stones the same way but you risk embedding concrete particles. I've been sharpening for years, over fifty and feel confident to highly recommend this stone.

Works perfectly, ive flattened 4 different stones, can take some time, but good quality compared to others I've used.

J'avais une pierre à eau bien tordue à force des aiguisages réguliers de mes couteaux de cuisine. En une vingtaine de minutes je l'ai redressée et elle est comme neuve. Un super produit pour compléter sa panoplie d'entretien.