How to remove a stripped screw ?
Whether you are carving a proper bookshelf or making a new woodshed, a stripped screw is very, very annoying.
Wrong bits – The reason you strip a screw is often that you use the wrong bits. That the bits are skewed in the screw or that you have the wrong torque on the screw drill.
Limit the damage First and foremost, do not continue to screw when it slips. Take a check if you have the correct bits, and if the track is not too broken, you can unscrew it again.
Then you might want to try with a screwdriver. So you can unscrew with much force and better control, is advised from wikihow.
Then using the screwdriver, the chuck tightens around the stem of the screw and unscrews. Here you can also use a polygrip pliers.
Extra friction -Take a little fine grinding paste on the screw or bits, be specific and preferably a little angry, then you get the screw out.
They have the sounding name piggyback. Admittedly, in the hardware catalogs, it has a technical, and perhaps more precise term: screwdriver or screw extractor.
So..Whats next ?
Then you need to drill, put down the extractor and unscrew. You can use the square variant to knock down a torx or Allen key and unscrew
He recommends drilling the head with a drill that has the same diameter as the stem of the screw.
Drilling out the screw carpenter Sven Eckhoff supports Nordvik in that the easiest is to drill the head. Then remove the attached workpiece and pull out the screw with pliers.
Here it is recommended to use everything from the aforementioned pig dicks to fine saws, chopsticks and welding.
Use Dremel. It works great. You quickly create a groove with the small cutting disc, and then just unscrew with a flat screwdriver.