Abrasive Cut-off Wheel

No hacker's toolbox is complete without a rotary cutter. And no rotary cutter is complete without fiberglass-reinforced abrasive cut-off wheels. The bionic cousins of the wimpy wheels that usually come with your tool, a set of these in your bag moves you from the world of plastic and wood into the realm of aluminum and stainless steel. Just mangled the slot on that screw head? No problem. With this, you can cut your own.