Excellent nozzle. I used to grind 3 steel wheel studs and nuts on two jeep wheels where the nuts were rusted solid. The bit also allowed me to easily mark the center of the wheel studs so I could drill more out of the stud before cutting through the stud and nut. I was able to remove the frozen bolts and nuts without damaging the alloy wheels. An alternative would be to use a milling cutter which will ruin the wheels. It cuts well and is not easy to break.