Bests & Worsts Reviews from Amazon

The WSKTS-KO sharpener takes a 3/4" belt, whereas many of the replacement belt kits shown here on the WSKTS-KO page are for 1/2" belts that go with the regular WSKTS Sharpener. Be careful when ordering replacement belts for the WSKTS-KO sharpener to get the proper 3/4" width. Additional Comments after several weeks of use (11/2/13)... While the WSKTS-KO allows you to take away a lot of steel very quickly, it also allows one to be as delicate as desired through the use of finer grain belts and slower sharpening speeds. The balance between speed and precision is up to how you use the tool, but the instructions describe a step-wise approach using incrementally finer-grit belts, but also point out that a polished finish (resulting from use of the finest grain belts) is not necessary for all knives. I have not yet tried this sharpener on scissors, and I would also like very much like to try the Blade Grinding Attachment that is described in the WSKTS-KO manual, when it becomes available. Additional Comments after several years of use (5/4/14)... I highly recommend the Work Sharp WSSAKO81112 Blade Grinder Attachment ($80 as of 5/4/15)! Wider belts (1 inch), and is better suited for large kitchen knives, and still sturdy as heck. The Blade Grinder puts the sharpening area of the belt right in front of your eyes, and while sharpening is more a free-hand movement than the WSKTS-KO, it is easy to keep the angle consistent by keeping the blade parallel to the table top. Well worth the money. Positives -Agree with other comments that this powered belt tool is good for those of us with out enough patience to use some of the time-consuming manual sharpening systems. -The improvements over the previous model are substantial (adjustable speed, adjustable angle, wider belt) and the Ken Onion version also seems to be more robust ("overbuilt and heavy duty"). It is not a toy. Negatives -It is not clear to me that the convex-shaped cutting edge that results from belt sanding is the best for all purposes. For example, on a chisel, a convex shape might get in the way of the cutting motion. Nevertheless, I don't see why the convex shape would not be suitable for most kitchen and outdoor knives. -The .75" x 12" belts are not a standard size, so replacement belts may not be widely available.