I used this heat gun to shrink tubing down to very thin wires. I was able to concentrate the heat flow with the included nozzles so the plastic casing holding the wires didn't melt. did not deform the plastic case. It worked like a dream. I got the job done without damaging anything. The weapon is fairly light, making it easy to use. I used to use "Princess" models, which are much more expensive. This is a good alternative at a much lower price. It's bigger but gets the job done.