Editing Removing stuck fasteners (section)
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==Special tools== *A pneumatic or electric impact wrench can loosen most any fastener, given enough tool capacity and psi. But that is not always going to be on hand. The following are some ideas that may work: *Flameless heat tool useful for removing rusted or broken fasteners: [http://www.theinductor.com/ The Inductor]. *Left-handed drill bits, or screw extractors, can be used to remove many fasteners. [[File:Left hand drill bits.jpg|frame|left| Left hand drill bits]] <br style="clear:both"/> *For stubborn nuts, try a nut splitter. It will crack the nut without damaging the bolt inside. *A rechargeable impact drill/driver can be used to loosen frozen fasteners if they are within the capacity of the tool. *Hand-held impact drivers typically have slotted and Phillips headed bits, as well as a socket fitting. The bit or socket is placed on the stuck fastener, and the other end of the impact driver is struck with a hammer. The impact of the hammer strike loosens the fastener, the downward force keeps the bit in its place, and the impact driver turns the force of the hammer strike into a sudden torque on the stuck fastener. *[http://www.sears.com/sr/javasr/product.do?cat=Hand+Tools%2C+General+Purpose&pid=00952166000&vertical=TOOL&subcat=Bolt-Out%2C+Taps+%26+Dies&BV_UseBVCookie=Yes Craftsman 10 pc. Damaged Bolt/Nut Remover Set, Low Profile Bolt-Out]. These can be useful for when the bolt head is rounded off, or there is no room to beat a socket or wrench on to it, or when a torch is not available. *Another good brand of bolt extractor is named '''Extractor''', it supposedly has a little bit more "bite" than the Craftsman and Irwin extractor tools. *Hotrodders forum thread on the [http://www.hotrodders.com/forum/does-work-grabit-seen-tv-155731.html "GrabIt"] extractor tool, as seen on a late-night infomercial. [[File:Sockets 003.jpg|thumb|left|300px|Damaged or frozen fastener removal sockets]]<br style="clear:both"/> *A rubber band placed between a stripped screwhead and a screwdriver can help get enough grip on the remaining metal. *If you're removing the remains of a broken zerk fitting/grease nipple, then a cheap Philips head screwdriver can be hammered in sufficiently to grip the hollow barrel and unscrew like normal. ===Instructions for making an impact-type screw removal tool=== This is designed to remove a fastener that has a stripped head. *Get an aircraft rivet gun (note: not a tubing cutter, they're too fast) that has less than 2000 bpm (blows per minute). *Get one of the rivet gun sets, and weld a piece of 3/4" hex stock to the working end of the set then weld an apex tip holder to the hex stock (of course you need an air compressor, 100 psi is just fine). *Put a Phillips tip in the apex holder (prior to that grind a little off the tip as they usually are slightly too long; this will allow the tip to drop farther into the screw head so it will pick up what is left of the flutes in the head). *Optional: Use some valve grinding compound on the tip of the Phillips head bit. The valve grinding compound will help the bit grip the fastener. *Put the whole thing together and insert the tip into the screw head. Slowly pull the trigger on the rivet gun, while at the same time putting pressure on the box end wrench you have installed on the hex part of your tool, making sure to keep pressure on the gun handle so it won't jump out of the work. *One word of caution: even though this works almost 100% of the time, it is possible (if the screw is into a plate nut) to twist the plate nut off its mount. '''[[Removing stuck fasteners#Metric method|Return to above]]'''
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