Spyderco Tri-Angle Sharpmaker Sharpening Stone (Ultra Fine) 204UF1 *Single Stone

Are you like me that when it comes to sharpening your knives, your OCD kicks in? If you have the sharp maker and you have the above condition, go head and add this. I sprung for one, then just got another. Sure you can get by on one but, why? After using these stones, I finish with a strop. It takes no significant time and blades come out scary sharp. It just gives my OCD that extra sense of sharpening satisfaction lol.

I was skeptical getting these cause I already have a strop that works great. But I must say this gets a mirror polish finish that I was looking for.

These work great finishing an edge. If you want you can strop after but be careful not to go to far and leave no teeth. I only use one of these. I mainly freehand with my spydie stones at this point but you could easily get by with one in the sharp maker. I have only used the grey medium white fine and white ultra fine. I have never needed anything more aggressive or fine for my program. I have had my sharpmaker for probably close to 20 years.

The difference isn't huge by any means, but it does get it to that next level. It's worth it if you obsess over having the very best possible edge you can achieve with the system. Using the boron more frequently I can say it's useless, I reviewed it there but honestly it's bad, don't buy that, didn't fit so I forced it and how the other ones wobble around slightly. Already wore out on me and I followed what was said. But this fits fine. If you are to buy another stone grab this one, DO NOT BUY THE BORON ONES.

You don't really need two of these if you pay attention to the burr and switch positions. With one, you have a great value but less convenience, and with two you have convenience at the cost of a more expensive system. This is one of the most useful stones for the package, and is the only upgrade I see necessary to the Sharpmaker. Diamond and the CBN stones are not worth the investment, and if such equipment is necessary look into KME for all of its benefits, or just get a lansky with diamonds. I personally use a worksharp to set the angle, and finish on the Sharpmaker.

These guys are a great little addition to the sharpmaker. Gives a little more fineness to the blades but not a biggie if you don't have them. I would say this is only for the guy that is really into sharpening.