Algodoo

Some pliers with a narrow nose, and a cutter thing near the bottom of the grabbers. In order to work properly, the sim frequency needs to be 1000, because of all the gears and the smallish size (for algodoo).

Oh, did I not mention the gears? There are gears in there to multiply the power you exert by 2, so you don't have to squeeze with as much force.

Convenient, huh?

In the scene, there's a laser setup that changes your sim frequency to 1000 automatically. To toggle between your sim frequency being 1000 and 100, tap Enter/Return. Your sim frequency is on the box to the right.