Not sure why you'd ever need to slice potatoes that thinly?
That's a slighty cut-down version of a Benriner - the mandolin of choice in many a professional kitchen.I have one of the inexpensive plastic japanese madolins. I think I got it from Amazon. It's not all singing and all dancing but is easy t use easy to clean and has done a really good job for me making salads and gratin.
http://www.amazon.co.uk/Kitchen-Cra...=UTF8&qid=1396198562&sr=8-9&keywords=mandolin
I've already had a mishap, because it was rubbish. Cur the pad of a finger off, and it's never healed properly. Nerves feel closer to the outside and theres an edge between the old and new skin.
This is the same I lost the tip of a finger but I've seen it happen to the palm of a hand too... I know accidents happen with knives but there's somthing about a mandolin that makes me nervous so I won't get another any time soon.