Hm. May as well give it a try.

[ He turns his back on the car, instead digging through the drawers under the workbench. He takes out a nut and bolt and screws one onto the other, holding it out. ]

There, tiny wrench for you. Unscrew it to the right size, then tighten it to get a good grip.

[ Genuinely being helpful, or just curious to see if Alucard's shirt will slide up again if he sets back to work? Both???? ]