Removing a screw with a stripped/rounded head is one of the most-frustrating problems – unless you have the right tool. These Draper 45856 reverse-threaded extractors have a tapered head so the further they turn into the head, the harder they grab until they overcome the resistance of the screw, bolt or stud.
Use a socket or tap handle to turn. You will need to drill a starter hole in center and then use the largest-size extractor that’s smaller than the fastener. Manufactured from chrome vanadium steel. Packed in a plastic case.
Contains one each of size: (3-6mm), (6-8mm), (8-11mm), (11-14mm) (14-18mm).