Removing Unbroken or Rusted Bolts

• 1). Find a wrench in your set of wrenches for the nut size and the bolt size. Place the wrenches on the nut and bolt.
  
  
• 2). Turn the wrench on the bolt head clockwise while you turn the wrench on the nut counterclockwise. If the bolt and nut are reverse thread, then turn the wrench on the bolt head counterclockwise and the wrench on the nut clockwise. If the bolt and nut move, then continue twisting until they come apart.
  
  
• 3). Tap on the bolt with a hammer to remove it from the hole it's in. If the bolt and nut don't move, spray them with an anti-seize lubricant and wait 24 hours. Try again. If they still don't move, light a self-lighting propane torch and heat up the nut until it's red hot. Heat the nut without the wrench on it. The heat will expand the nut. Place the wrenches on the nut and bolt and try to move them. Repeat the wrench twisting, the lubrication and the heating until the nut and bolt burst free and you can separate them.
  
  

Removing Broken Bolts

• 1). Grind off the shank of the bolt so it's smooth with the surface it's screwed into. If the shank isn't broken and the bolt head is, then grind that side. Use a diamond grinding wheel on a pneumatic grinder to do the grinding. Remember which side the bolt head was on, because that will be the side you'll be drilling into.
  
  
• 2). Tap a dent in the center of the bolt, using a pointed steel center punch and hammer. Drill a 1/8-inch pilot hole through the center of the bolt, using a hardened drill bit suited for drilling grade 8 bolts. Set the point of the drill bit in the dent and then drill through with an electric drill. Pull the drill out every once in a while to eject the metal tailings from the hole.
  
  
• 3). Place a larger drill bit in the drill and tighten it down with a chuck. Use a left-handed drill bit for left-handed bolts and a right-handed drill bit for right-handed bolts. Drill into the side of the bolt where the bolt head was until the bolt breaks free and threads out of the hole. If the bolt doesn't break free, spray anti-seize lubricant around the bolt's threads and wait 24 hours. If it doesn't break free after that, try to use an easy-out extractor.
  
  
• 4). Insert the extractor into the electric drill and tighten it down with the chuck. Place it in the drilled hole and try to eject the bolt. If this doesn't work, put a drill bit in the drill the same size as the shank of the bolt and drill all the way through the hole the bolt is in. The hole will need to be rethreaded with a thread repair kit.