Good for removing seized bolts on vehicles. Paid for itself on the first couple of jobs.
If there are a lot of seized bolts to remove I would recommend letting the induction heater cool down before trying to do all the bolts without pausing to allow sufficient time for the tool to cool down. Usually getting a bolt cherry red is sufficient to loosen a bolt or nut without having to get it red hot.
This tool is much safer to use than a gas torch provided the necessary precautions are taken when working on vehicles.