Here is how I sharpen Lister large animal clipper blades. @sharpenrightservicesllc I use a Nebraska Blade Big Red Clipper Blade Sharpening Machine from The Edge Pro @TheEdgePro
thank you for replying. I think I can get them from Amazon and possibly UK suppliers, what are the lengths of the magnets you are using please? (30mm, 40mm, 45 . or 1.18inch, 1.57, 1.77 ?) Regards, Kevin. @@sharpenrightservicesllc