RUIXIN PRO 8 Pcs Diamond Knife Sharpening Stones for RUIXIN PRO RX-008 RX-009 Knife Sharpener Fixed-Angle Kit, Professional Whetstone Set With Base: 100/200/500/800/1000/1500/2000/3000 Grit

Excelente jusgo de piedras para afilar cuchillos, faciles de usar, bien elaboradas.

Good for reprofiling blades, not so good for polished edge. All in all ok for a good working edge.

Produto muito bom, afia muito bem no meu afiador que construí.

I purchased the RUIXIN PRO 8 Pcs Diamond Knife Sharpening Stones for my RX-008 knife sharpener, and they worked exactly as described. The stones are well-constructed and properly glued, unlike some other options on Amazon that are poorly made and prone to breaking or delaminating with basic use. This set feels solid and durable. While I'm not completely certain the grit sizes are precisely as labeled, they seem fairly accurate and perform well. These stones worked well with the RUIXIN knife sharpening system, and allowed me to sharpen eight kitchen knives quickly and get great results. My only suggestion for improvement would be the addition of a 6000 grit stone for even finer finishing. Overall, this is a high-quality product and a worthwhile purchase.

There are a lot of new blade steels that are hardened to beyond RC60 these days, and they can take some time to sharpen with traditional stones. These are designed to be used with Ruixin sharpening system or any of the other similar systems. I got these for an M390 knife I bought recently. They were extremely fast at removing the factory grind mark and adjusting the angle. I was able to work through to the 3000 grit and remove almost all of the coarser scratches so it looks more or less like a mirror after stropping with 5000 and 14000 diamond grit. It was sharp enough to peel a sliver off my beard hair, and there are only a few microscopic edge chips after quite a bit of use. The price is good the quality and grading seem to be very good. (Basically, no deep scratches that can't be removed with the next grti.) With the rest of the system, and a diamond strop, you can quickly get a nearly perfect edge without a lot of work.