I have the TruCut and only used it once or twice. I didn't find it to mesure up to the hype. It doesn't take care of nicks and blade doesn't sharp like new. For 45mm I get the Harbor Freight. My blades seem to last a long time so I don't find the sharpeners worth the $$. If an individual is selling one on ebay I would assume they didn't find it useful or worth the $$.