Buzz cut, stubble, covered in oil stains and grease and minor burns and bruises, legs lazily spread as she sits down with a beer after a long day of servicing vehicles for her clients, massive tits just constantly present

Sometimes if one of her apprentices or another mechanic seems like they're not paying attention she'll do a couple of heel raises so they bounce and if she sees their eyes/head bobbing, she smacks them in the head and tells them to get their asses in gear they're here to work

Cute femme clients come in and she always swoops on them because she always loves seeing how flustered they get seeing her sweaty cleavage, emphasised when she ties her coveralls under her tits to draw the eye to them

Occasionally she takes a "smoke break" when one really catches her eye and invites them into her office while they're waiting for their oil to be changed or whatever