Enter a seasoned DIYer’s go-to tool: a screw extractor. While the specific design of this inexpensive implement varies, it most commonly takes the form of a tapered drill bit with a reversed thread.

Thread Repair. What happens when a ... The bolt extractor is a left-handed coarse thread tool that screws into the hole as shown. Carefully turn counterclockwise and attempt to remove the broken ...

The Heli-Coil, available from Summit Racing Equipment, has long been the industry standard for thread repair. Heli-Coil inserts work in any material—aluminum, magnesium, cast iron, bronze, and more.