Apply penetrating oil and let it soak
Clean exposed threads and the surrounding area
Use the correct extractor bit or left-hand drill bit
Center-punch the broken bolt
Drill a pilot hole straight into the bolt
Turn the extractor counterclockwise to remove the bolt
If needed, heat the surrounding metal to help loosen it
Use locking pliers if any bolt remains exposed
Tap the bolt lightly to break corrosion before trying again
Re-drill with a larger bit if the extractor fails
Use a screw extractor kit for stubborn bolts
Weld a nut onto the broken bolt if possible
Cut a slot in the bolt head or stub and use a flathead driver
Re-tap the threads after removal if damaged
Replace the bolt with a new one of the correct size and grade