Bolt extractor: A bolt extractor looks similar to a standard socket head except for the spiral threads inside it.Read on to learn more about each type and crucial factors, including gripping power and the material one should consider when choosing the best screw extractor. These threads bite into the bolt head as the user turns the socket counterclockwise using a socket wrench. Spiral screw extractor: A spiral screw extractor removes screws or bolts by fitting them into a hole that’s been drilled into the fastener’s head with a drill bit.The threads typically have a spiral pattern that becomes tighter with force.
The extractor has reverse threads that grip the screw as it rotates inside the hole counterclockwise. Many spiral screw extractor kits come with matching drill bits. Extraction pliers: Extraction pliers are a good option for damaged screws or bolts whose heads are protruding from the surface of the material.Some are double-sided, with a drill bit on one side and an extractor on the other. Stud and bolt extractor tool: This tool looks similar to the chuck of a power drill.This set of specialty pliers has teeth designed to grip firmly onto the head, allowing the user to remove the screw by attaching the pliers and turning them counterclockwise. Like extraction pliers, it only works with screws or bolts that are sticking out of the material. To use an extractor tool, place it over the head of the stud or bolt, then tighten the grip around it like a vice. Attach the end to a 0.375-inch or 0.500-inch ratchet and turn counterclockwise to remove the bolt or screw.
Screw heads come in a wide variety of sizes, so it’s important to pay attention to what sizes the screw extractor can accommodate.
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