unusable for me. I have a "general" employed foot and nail care unit of Beurer- but the pin is too small, it can not be used. Even if the text is: This grinder fits all standard pedicure tools >> remeasuring the instrument or the look in the manual is better! I now use the polisher at my Drehmel mini mills, drills and other for model ... what makes me happy! Therefore still full marks.
