The diameter of the screw extractor needs to be just a little less than the diameter of the pilot hole that you drilled. Make a tiny depression in the paper with the help of a center punch: After positioning the center punch in the exact middle of the damaged bolt, give it a few strong taps with the hammer to loosen it.Ĭhoose the appropriate screw extractor: Because screw extractors are available in various sizes, selecting the appropriate size for the bolt you remove is important. Like the previous approach, start by penetrating oil into the broken bolt and letting it soak inappropriately. Spray penetrating oil on the bolt: Apply penetrating oil to the broken bolt and let it soak in for at least 15 to 20 minutes. The following is a list of the steps that you should follow: Method 2: Screw Extractor Screw ExtractorĪn extractor screw is a type of screw extractor that is a specialized instrument designed to remove damaged bolts. You may need a screw extractor if the bolt does not turn. Remove the bolt: As you continue drilling, the left-hand drill bit may start turning the bolt in the opposite direction of the clock, making removing it much simpler. Keep going until the bit is completely through the bolt. Continue to drill through the bolt even if it does not start to spin as you work on it. As you are drilling, use hard yet consistent pressure, and be careful not to apply too much force. Choose a left-handed drill bit larger than the hole you drilled for the pilot.ĭrill into the broken bolt: Start drilling into the broken bolt with the left-hand drill bit, then continue drilling into the fractured bolt with the right-hand drill bit. Use a drill guide to assist you in maintaining the drill bit centered if you are having difficulty doing so.Įmploy a drill bit with a left-hand helix: A left-hand drill bit is intended to turn in the opposite direction of the clock, which can assist in releasing the bolt as you drill. Be cautious always about maintaining the drill bit centered and in a straight line. Drill a pilot hole: To drill a pilot hole through the center of the broken bolt, use a drill bit with a diameter just a little bit smaller than the diameter of the bolt.
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