Medium is 600 This directly from Spyderco . " While many manufacturers use the terms medium to mean a rather coarse level of grit, the Spyderco Medium is more comparable to other stones described as fine or even a little finer. $52.50 $ 52. The ceramic sharpening surface is very hard and durable. Spyderco - White Ceramic Sharpening File Set with Suede Snap-Close Pouch - Ceramic Stone - 400F. 4,765. I put them in the following progression for my use if I were to use each one. IMHO a diamond plate and the medium spyderco bench stone can get you a ridiculous edge on any knife you could buy. The Extra/Ultrafine ceramic is around $70 The ceramics seem attractive because they're actually designed to be used dry and their aluminum oxide ceramic construction *should* make them cut harder steels better than a natural stone (I'm going out on a … Spyderco 303MF 1" by 5" DoubleStuff Sharpening Stone - Medium & Fine Sided and Includes Protective Case - 303MF. 50 ($11.72/oz) FREE Shipping. Made of the same ceramic material of the famous Triangular rods, this is a medium ceramic bench stone. Nov 20, 2004. sir_mike said: ↑ I guess ceramic stones like the Naniwa's are the top choice for straight razors, not sure about knives though. So a while back I used DMT, Shapton glass and Spyderco stones and compared the scratch patternes. 4.8 out of 5 stars 176. Especially with ceramic which Spyderco doesn't even apply a grit or micron rating. May 17, 2016 #4. Our Sharpening stones are made of high alumina ceramic. 00 ($5.47/oz) FREE Shipping. Med., fine, UF are the designations they use. The medium and fine ceramic stones can be had for $37 a piece (cheaper as a pair than a Halls Soft Ark and Surgical Black). They come highly recommended for razor honing. teudy likes this. JD Spydo Gold Member Gold Member. 9000700 Spyderco Bench Stone Sharpener with Storage Case Medium Made of highest quality material Large 2- Inch X8- Inch ceramic stone effectively sharpens large knives, planes, and other tools Medium grit cuts aggressively and is ideal for sharpening very dull knives or re- profiling the edge bevel of a knife $35.00 $ 35. 4.7 out of 5 stars 235. There is not actual "grit" rating for these style of stones because a grit refers to the size of the abrasive particles in a sandpaper. These ceramic stones are to be used dry (no oil … I …