How To Use Screw Extractor

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Post on Feb 07, 2025

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How To Use a Screw Extractor: A Step-by-Step Guide

Stripped screws are a frustratingly common problem for DIYers and professionals alike. Fortunately, a screw extractor can often save the day, allowing you to remove even the most stubborn, damaged screws. This guide provides a comprehensive walkthrough on how to use a screw extractor effectively and safely.

Understanding Screw Extractors

Screw extractors, also known as screw removers or easy-outs, are specialized tools designed to remove stripped or damaged screws. They work by engaging with the remaining threads of the screw, allowing you to turn it out counterclockwise. They typically come in sets with varying sizes to accommodate different screw types and sizes. They're usually made of high-strength steel, designed to withstand the considerable force often required for removal.

Types of Screw Extractors

There are several types of screw extractors available:

• Left-Hand Drill Bits: These are the most common type. They're essentially drill bits with a reverse (left-hand) thread. You drill a pilot hole into the stripped screw, then insert the extractor and turn it counterclockwise.

• Screw Extractor Sets: These kits contain multiple extractors of varying sizes and often include a drill bit for creating the pilot hole. This is a cost-effective way to have the right tool for most situations.

• EZ-Outs: These are a specific brand of screw extractors known for their effectiveness. They usually have a self-centering tip which helps with accuracy.

How to Use a Screw Extractor: A Practical Guide

Before you begin, gather the necessary tools:

• Screw Extractor Set: Choose the appropriate size based on the stripped screw.
• Drill: A hand drill or a power drill will work, but a cordless drill offers more control.
• Drill Bits: You'll need a drill bit slightly smaller than the diameter of your extractor.
• Hammer (optional): In some stubborn cases, a gentle tap with a hammer might be necessary.
• Penetrating Oil (e.g., WD-40): This helps to loosen the screw.
• Safety Glasses: Always protect your eyes.

Steps:

1. Preparation: Apply penetrating oil to the stripped screw and allow it to soak for at least 15-20 minutes. This will help break down any corrosion or rust, making the screw easier to remove.

2. Choosing the Right Extractor: Select a screw extractor slightly smaller than the diameter of the stripped screw. It's better to err on the side of caution and choose a slightly smaller one to avoid damaging the surrounding material.

3. Drilling the Pilot Hole: Using a drill bit slightly smaller than your chosen extractor, carefully drill a hole into the center of the stripped screw. Drill slowly and steadily, applying even pressure to prevent slipping. Don't drill too deep; aim for a depth slightly less than the length of the extractor.

4. Inserting the Extractor: Insert the screw extractor into the pilot hole, making sure it’s seated firmly and straight.

5. Turning Out the Screw: Using your drill (in reverse), carefully turn the extractor counter-clockwise. Apply gentle pressure initially, increasing it gradually as needed. If it's particularly stubborn, try tapping the extractor gently with a hammer to help it engage.

6. Removal: Once the screw is loosened, continue turning until it’s completely removed.

7. Cleanup: Once the screw is removed, clean the area and inspect the surrounding material for any damage. You may need to repair the hole depending on the situation.

Troubleshooting

• Extractor Breaks: If the extractor breaks off inside the screw, it can be even more challenging to remove. You may need to use a different extractor, a larger drill bit, or seek professional help.

• Screw Doesn't Budge: If the screw still won't budge after trying these steps, you may need to try a different approach, such as using heat to expand the screw or applying more penetrating oil.

• Stripped Surrounding Material: In some cases, excessive force can damage the surrounding material. Take care to work slowly and methodically.

Conclusion

Removing stripped screws can be a frustrating experience, but with the right tools and techniques, it’s entirely manageable. Using a screw extractor effectively requires patience, precision, and the right approach. Following these steps will improve your chances of successfully removing stubborn, damaged screws. Remember safety first – always wear safety glasses and work in a well-ventilated area.