what are certain dog grooming devices for?

i would like to know what the following dog grooming devices are for and how to use them :
-shedding blade
-stripper knife
-mat remover (i know what it is but im not sure how to use it properly)
-slicker brush
stripping stone

thanks!!

and could you include what type of brush would be best for dog with very high maintenance coats (such as Yorkies and Maltese)? i would also like to know how to maintain a high maintenance coat :)
 
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