For a variety of reasons, mechanics like to use best hand soap for
mechanics ie- a knuckle scrubber when washing their hands. Grease
or filth stuck in the skin's pores can be initially removed using the
scrubber.
Check out here:- https://www.slideshare.net/ToolboxWidgetUK/what-role-does-mechanical-hand-soap-play-in-mechanic-hand-cleaning
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