1. Extracting Tools:
* Bolt Extractor Set: This set contains drill bits and extractor tips of various sizes. You drill a pilot hole into the broken bolt, then use the extractor to grip the remaining piece and twist it out.
* Easy Out: This is a specialized tool similar to an extractor, but it's designed for removing broken screws and bolts. They come in various sizes and are commonly used for removing stripped screws.
* Left-Hand Drill Bit: These are used to drill out broken bolts in a counterclockwise direction. This can be helpful if the broken bolt is rusted or seized in place.
2. Mechanical Removal:
* Vice Grips: If the broken bolt is protruding, you can use vice grips to grip it and twist it out.
* Hammer and Chisel: If the broken bolt is flush with the surface, you can use a chisel and hammer to chip away at the bolt head, creating a space for a screwdriver or wrench to grip.
3. Chemical Methods:
* Penetrating Fluid (e.g., WD-40): This can help loosen seized or rusted bolts. Apply it liberally to the broken bolt and let it soak for a while.
* Heat: If the bolt is made of steel, you can apply heat to expand the metal and loosen it. Use a heat gun or torch, being careful not to damage nearby components.
Important Considerations:
* Type of Bolt: The type of bolt (e.g., standard, metric, or special) will determine the appropriate extractor size.
* Material of the Bolt: The material of the bolt will affect the ease of removal. Steel bolts are often easier to remove than hardened bolts.
* Access: The location of the broken bolt will determine the tools you can use.
Safety Precautions:
* Wear Safety Glasses: Protect your eyes from flying debris.
* Use Proper Tooling: Use the right size and type of tools to avoid damaging the surrounding components.
* Be Patient: Extracting a broken bolt can be time-consuming and require patience.
When in Doubt, Consult a Professional:
If you're unsure about removing a broken bolt, it's best to consult a qualified mechanic. They have the experience and tools to handle the job safely and efficiently.