Just about anyone who has worked on older cars knows the frustration of removing rusted in bolts and studs. You can use penetrating oil or a torch but some just don’t want to loosen up. The worst that can happen is when a bolt breaks and then removing a broken bolt becomes a whole different problem. In my research I have come across a hand little tool called a Heat Induction Bolt Remover that uses induction heating to heat the bolt and loosen it. There are a number of these tools on the market, manufactured by different companies but they all work the same way.
How a Heat Induction Bolt Remover Works
The Heat Induction Bolt Remover is a tool that has an insulated handle and interchangeable electrical coil end that can be used to size the bolt head or stud you are going to remove. The heater concentrates the heat to the bolt and the bolt expands. When it expands the movement of the metal bolt starts to loose the threads from the engine block or other metal part it is screwed into. After heating for a short time you can put a wrench or ratchet on the bolt head and start unscrewing out.
In my time working with all thing metal, I never had a chance to use a tool like this. It was always the old torch and penetrating oil. If you are going to be restoring any vehicle this tool would be a great help. Uses would be as stated engine parts but also suspension components, shocks, drive line parts and even body panels.
Any of these tools can be easily found on eBay or Amazon.
Below is a short video that shows you how a Heat Induction Bolt Remover works by removing a bolt from an engine block.