Why My Dewalt Jigsaw Blade Keeps Falling Out?

By | March 21, 2023

Jigsaws are a versatile and indispensable tool for any DIY enthusiast or professional woodworker. The ability to make intricate cuts and navigate curves with ease makes the Dewalt jigsaw a go-to choice for many.

However, there’s nothing more frustrating than having your jigsaw blade continually fall out during a project, interrupting your workflow and potentially affecting the quality of your cuts.

In this article, I’ll explore the common reasons why Dewalt jigsaw blades may keep falling out and provide practical solutions to help you overcome this pesky problem.

So, let’s dive in and ensure that you can enjoy a smooth, uninterrupted cutting experience with your trusted Dewalt DCS334 jigsaw!

Common causes for Dewalt jigsaw blade falling out

These are the most common reasons why your Dewalt jigsaw may not stay in its place.

Sawdust or debris in the blade holder

When using your Dewalt jigsaw, sawdust or debris can accumulate in the blade holder. This buildup can cause the blade to be improperly seated, leading to it falling out during use. To fix this issue, make sure to clean the blade holder regularly, removing any sawdust or debris that might be present. Using compressed air or a small brush can be an effective way to clean the holder and ensure the blade is secured properly.

Worn or damaged set screws

Set screws are responsible for holding the blade in place within the jigsaw. Over time, these screws can wear down or become damaged, which can prevent them from tightening properly. If you notice that the set screws aren’t holding the blade securely, consider replacing them with new ones. Additionally, using a star or spring washer under the screws can help prevent them from vibrating loose during operation.

Incorrect blade type for the jigsaw

Using the wrong type of blade for your Dewalt jigsaw can cause it to fall out during use. Dewalt jigsaws are designed to work with T-shank blades, which provide a secure fit and optimal performance. It’s essential to use the correct blade type for your specific jigsaw model to ensure a proper fit and prevent the blade from falling out. Consult your jigsaw’s user manual or the manufacturer’s website to verify that you’re using the appropriate T-shank blade for your tool. By using the right blade, you’ll avoid potential issues and enjoy a smooth cutting experience.

Faulty or worn blade holder

Over time, the blade holder in your jigsaw can wear down or become damaged, making it difficult to securely hold the blade in place. If you suspect that the blade holder is the cause of the problem, it might be time to replace it. Consult your jigsaw’s user manual or contact the manufacturer for guidance on finding and installing a new blade holder for your specific model.

Blade not locked properly

If the blade isn’t locked correctly within the jigsaw, it can easily fall out during operation. To avoid this issue, ensure that you’re properly inserting the blade and engaging the locking mechanism. If you’re new to using jigsaws or have recently purchased a new model, keep in mind that the locking mechanisms can sometimes be a bit stiff at first. Practice inserting and locking the blade securely before beginning any cutting tasks.

Stripped threads on screws or screw holes

Stripped threads on the set screws or screw holes can prevent the blade from being held securely within the jigsaw. If you notice that the screws aren’t tightening properly, or if they seem to slip within the threads, consider replacing the screws or repairing the screw holes. You may need to consult a professional or visit a hardware store for assistance with this issue.

Loose or missing quick-release mechanism

Some jigsaw models have a quick-release mechanism to make blade changes more convenient. If this mechanism is loose or missing, the blade may not be held securely in place. Check the quick-release mechanism on your jigsaw to ensure that it’s functioning correctly and securely holding the blade. If necessary, consult your jigsaw’s user manual or contact the manufacturer for guidance on repairing or replacing the quick-release mechanism.

Worn or damaged jigsaw arm or shaft

If the jigsaw arm or shaft that supports the blade is worn or damaged, it can prevent the blade from being held securely. Inspect the jigsaw arm and shaft for signs of wear or damage, and consider replacing these components if necessary. In some cases, it might be more cost-effective to purchase a new jigsaw rather than replace individual parts. Before making any decisions, consult your user manual or contact the manufacturer for guidance on the best course of action.


Addressing the issue of a Dewalt jigsaw blade falling out is crucial for achieving smooth and efficient cutting results.

By understanding the common causes, such as sawdust in the blade holder, worn set screws, incorrect blade type, faulty blade holder, improper blade locking, stripped threads, loose quick-release mechanism, and worn jigsaw arm or shaft, you can effectively troubleshoot and resolve the problem.

Always make sure to regularly clean and maintain your jigsaw to prevent debris buildup, use the correct T-shank blades, ensure the blade is locked securely, and inspect the tool for wear and damage.

By taking these preventative measures and addressing any issues promptly, you can enjoy a safe and seamless cutting experience with your Dewalt jigsaw.

Remember to consult your user manual or the manufacturer’s website for specific guidance on maintaining and repairing your particular jigsaw model. Happy cutting!