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Best slicer to use for extremely thin vegetable slices? - mandolin vegetable slicer

I make a recipe with chopped celery and carrots and chop finely.
Due to health problems I can use my hands to get very thin slices.
I have a gadget that does not buy it for me.

Suggestions? (Please, not the "salad shooter", the cuts are too large.)
I know there are "Mandolin slicers and accessories for different brands of food processors, who say cutting vegetables.

1. If any of the above give me a piece of very thin?
2, which set up yourself or a friend of funds .. and recommend for cutting thin slices?