Bought this sharpener for just under £10 from amazon, with free super saver delivery.... reason being , my leatherman has started to get a dull knife edge, as you would expect being used so much - and all knives blunt eventually. I tried many other sharpeners, all of which claim to be the best..... they weren't - this is! The wenger sharpener is fantastic.... it states 4-5 runs across the blade, and the knife blade will be sharp... not quite... more like 8-10 before you feel a nearly razor sharp edge - it doesn't hack the blade, but instead leave a smooth finish - top piece of kit.