It's similar to having sand drop on fly paper and wanting it to be an even surface. Med., fine, UF are the designations they use. My take on how to be sure that your ceramic sharpening stone by Spyderco is flat.In one of my previous videos I showed that out of the box the stone is usable but not as flat as I wanted to be.My routine is simple - piece of glass and couple of sizes abrasive grain (silicon carbide) - 80, 220 and 400.You need to used the 80 and 220 just the first time because being as hard as it is the stone does not wear out, does not dish out.The only problem with these type of stones after making the flat is wearing out the abrasive particles and clogging up with metal swarf, so cleaning and refreshing is necessary to ensure fast cutting and avoiding burnishing the edges of your tools. Re: Spyderco medium grit bench stone. Opinions please. I have developed a habit of using extremely light strokes on the last 2 or 3 stones but with the stones I remove a lot of steel with while re-profiling I may have been using too much force. Postby jackknifeh » Tue Oct 22, 2013 12:24 pm, Postby jackknifeh » Tue Oct 22, 2013 1:07 pm, Postby Fancier » Tue Oct 22, 2013 1:47 pm, Postby sir_mike » Tue Oct 22, 2013 3:11 pm, Postby jackknifeh » Tue Oct 22, 2013 4:22 pm, Postby markdstump » Thu Mar 24, 2016 9:44 am, Users browsing this forum: Bing [Bot], buckthorn, Google [Bot], Johncjeff and 54 guests. Opinions please. As with all of Spyderco's ceramic stones, use our benchstones dry without lubricants or oils. I watch this thread as I am thinking about the freehanding and the Spyderco benchstone set! 00 ($2.84/oz) Get it as soon as Wed, Dec 2. sir_mike wrote:So are you gonna get a Spyderco medium bench stone or something different? So a while back I used DMT, Shapton glass and Spyderco stones and … As with all of Spyderco's ceramic stones, use our benchstones dry without lubricants or oils. Especially with ceramic which Spyderco doesn't even apply a grit or micron rating. Spyderco - BenchStone Sharpening Stone with Polymer Case - Medium Grit - 302M. $49.00 $ 49. Or still undecided? I like the idea of using the stones dry and not ones with oil or water as I dont want the mess! Spyderco medium grit bench stone. FREE Shipping by Amazon. Opinions please. Hopefully using lighter strokes will result in fewer deeper scratches than the grit should leave. My freehand sharpening skills are really non existent as I just as I just started to freehand. I will have to think about the Spyderco's then. Using extremely light pressure has proven to be the key in the ultra sharp edges I'm now getting using only stones. For me 400 grit silicon carbide abrasive grain works just fine for conditioning the stone. 4.8 out of 5 stars 219. Just a thought. Made from ultra-hard alumina ceramic material, Spyderco's medium-grit benchstone is used like a traditional sharpening stone, but does not require oil or water. Available in Medium (pictured), Fine or Ultrafine grits, each 2" x 8" x 1/5" stone comes packaged in a rigid polymer storage case complete with non-skid rubber feet for tabletop use. I think the scratches are due to the fact that you can't get all of the diamonds to line up. Lapping / flattening Spyderco Medium ceramic sharpening stone Comparing grits between different type materials seems to be a bit difficult. Available in Fine, Medium, or Ultrafine grits, each 2" x 8" stone comes packaged in a rigid polymer storage case complete with non-skid rubber feet for tabletop use. Its broad, flat surface is ideal for sharpening woodworking tools and all types of knives and can be easily cleaned with household cleanser, a scouring pad, and water. I am really more interested in maintaining an edge as my knives dont see much use so just for touchups and if one gets dull from alot of use (just in case) scenario! Maybe extremely light pressure with the coarser grits will show good results regarding deep scratches. To deal with my random scratch issue for now I will pay more attention to NOT using a lot of pressure when using the coarser grit stones. Spyderco Counterfeits, Clones, Replicas, etc. Discuss Spyderco's products and history. ... Post by jackknifeh » Tue Oct 22, 2013 6:24 pm . Spyderco medium grit bench stone.