KAI Combination Sharpening Stone, grit: 400/1000 - Japanese knife sharpener for coarse and fine sharpening - sharpening stone 400 1000 whetstone for knives usable surface 18 x 6 x 3 cm

It is better than I expected. Thank you very much.

I own and use this whetstone, KAI is a well known knife brand and can be trusted. It just takes some practice to learn how to use it. The 400 (荒砥石) is used for very blunt knives or knives with visible gaps in the blade. The 1000 (中仕上砥石) is used for everyday maintenance. There are youtube videos but basically the angle is quite important and the stone needs to be kept wet (if it dries, you can add more water to the tray which will soak into the stone). My only issue is that the set retails for £11.36 in Japan and £40 is a high markup even considering the import job.

good stone

Quality product, so long as you know how to use it. creates a good edge.

This is not a good buy. I used once and was very disappointed. Poor quality imported imitation. Even if it was half the price I would not recommend.

Rispetto ad altre pietre che ho provato affila molto meglio, permette di ottenere buoni risultati in poco tempo, altamente consigliata rispetto alle altre scelte presenti su amazon

Der Stein mit seinen beiden Körnungen eignet sich hervorragend zum Schärfen von Messer. Der Halter ist rutschfest, so dass man sich auf den Schleifvorgang konzentrieren kann. Der Stein ist sein Geld absolut wert.

Good design with a tray below to capture the water. Use for sharpening knives.

EXCELLENT PRODUCT.

使い勝手がよく，よく砥げます．中砥ぎにしてはやや粗い気がしますが，実用上，問題ありません．