Tight Grip

With some models, especially giant-scale airplanes, it becomes necessary to reach into the model and place a screw in a specific spot and then tighten it into place. Magnetic screwdrivers often don’t work with large screws and bolts, with the screw inevitably dropping off the end, which is very frustrating. To solve this, I slip a length of heat-shrink tubing over the screwhead and onto the end of the screwdriver. I heat it up just...