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This AB Tools Screw Extractor Set is designed for professionals and DIY enthusiasts needing to remove stubborn, rusted, stripped, or seized screws and bolts. Its key benefit is the left-handed spiral flute design that provides superior grip, even on damaged fasteners. A potential caveat is the requirement for pre-drilling holes for effective use. The set includes metric-sized extractors for fittings from 3mm to 22mm, manufactured from durable Cr-Mo steel, and comes in a convenient blow-molded case.
| Model Part Number | AT297.1 |
|---|---|
| Brand | AB Tools |
The set includes extractors for fittings ranging from 3mm up to 22mm in diameter.
Yes, pre-drilling a pilot hole into the center of the damaged fastener is required for the extractor's spiral flutes to engage properly.
While a standard drill can be used for the pilot hole, the extractors themselves require a 1/2in drive tool like a ratchet or impact wrench for extraction due to the torque needed.
The extractors are manufactured from durable Cr-Mo (Chromium-Molybdenum) steel for maximum strength and longevity.
The left-handed spiral design provides extra gripping power. As you turn the extractor counter-clockwise to remove the fastener, the flutes embed themselves deeper into the material, increasing grip as resistance increases.
Clean the extractors after each use to remove debris. Store them in the provided blow-molded case to keep them organized and protected.
The description specifies metric sizing for fittings from 3mm to 22mm. It is primarily designed for metric applications.
Ensure the pilot hole is drilled correctly and is not too large. For harder materials, ensure the drill bit used is sharp. The extractor may not be fully seated; try tapping it gently into the hole before applying torque.
This can occur if excessive force is applied too quickly, or if the wrong size extractor is used. Ensure you are using the correct size for the fastener and apply torque smoothly and steadily. Using a lubricant on seized bolts may also help reduce required force.
Verify that the pilot hole is straight and centered. Ensure the extractor is fully engaged within the pilot hole. Applying slight downward pressure while turning may help maintain grip.
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