How to Fix a Spring Loaded Knife

If you’re an avid outdoorsman or hunter, having a reliable knife attached to your belt can be invaluable. But if it’s a spring-loaded model, there may come a time when its spring becomes worn out or breaks entirely—rendering the blade unable to safely close or open. 

How to Fix a Spring Loaded Knife

Thankfully, restoring these snappy blades is typically simple and easy if you know what you’re doing! In this article, we will provide step-by-step instructions on how to fix a spring loaded knife so that it works like brand new again.

Are Spring-Assisted Knives Safe?

When it comes to using knives, safety should always be the priority. Spring-assisted knives are generally considered safe, provided they are used and maintained properly. To further increase safety when using a spring-assisted knife, it is important to make sure the blade has been properly secured in its handle. It is also important to check that the spring mechanism is working properly, as a damaged or malfunctioning spring can cause the blade to open unexpectedly.

It is also important to practice caution when using a spring-assisted knife, as there is always the potential for accidents and injury. It’s best to avoid any activities that could be considered dangerous with a knife, such as opening cans or slicing food on a hard surface. Additionally, it is important to make sure that the knife is stored securely and out of reach of children.

Overall, spring-assisted knives can be used safely if handled properly and with caution. Following these tips will ensure that you remain safe while using your spring-assisted knife.

10 Methods on How to Fix a Spring Loaded Knife

1. Check the Screws

The first thing you should do if your spring-loaded knife is not working properly is to check the screws. If any of the screws are loose, tighten them with a screwdriver. If any of the screws are damaged, replace them. Although this may not always fix the issue, it is a good starting point. However, if this doesn’t work, then it’s time to dig a little deeper. Try to determine what is causing the knife to malfunction.

2. Check the Blade

If the blade of your spring-loaded knife is not moving freely, it may be due to dirt or debris that has accumulated on the blade. Use a soft cloth to clean the blade, and then lubricate it with a small amount of oil. This will help the blade move smoothly. If you find that the blade is still not moving freely, it may be due to damage or wear on the blade itself.

Use a Soft Cloth to Clean the Blade

If this is the case, you may need to replace the blade in order to ensure that your knife functions properly. Though it may require a bit of work, it is not difficult to do. Make sure to wear protective gloves when removing and to replace the blade of a spring-loaded knife.

3. Check the Springs

If your spring-loaded knife is not opening or closing properly, it may be due to a problem with the springs. Inspect the springs for signs of wear or damage, and replace them if necessary. Make sure the springs are firmly attached to the knife and that they fit snugly. If they are loose, your knife may not open or close properly.

When inspecting the springs, look for any broken pieces or frayed edges that may be preventing them from functioning correctly. You can usually find replacement springs at most hardware stores.

4. Adjust the Tension

If your spring-loaded knife is not opening or closing as smoothly as it should, you may need to adjust the tension. This can usually be done by turning a small screw located on the side of the knife. Turning the screw clockwise will increase tension while turning it counterclockwise will reduce tension.

However, be careful not to over-tighten the screw, as this may cause damage to the mechanism and make it more difficult to open or close. If you are unsure of how tight to set the screw, consult the manufacturer’s instructions. After you have adjusted the tension, test out your knife to make sure it is operating correctly. If not, you may need to make further adjustments.

5. Clean and Lubricate the Pivot Point

If your spring-loaded knife is not opening or closing smoothly, it may be due to a problem with the pivot point. Clean and lubricate the pivot point with a small amount of oil. Use a cotton swab or small brush to clean away any dirt or debris, and use the oil to lubricate the top of the pivot point. This should help your spring-loaded knife open and close smoothly.

You can also use a light lubricant such as WD-40 or gun oil to help the blade slide in and out of the handle. Just make sure you do not over-lubricate the pivot point, which can reduce its effectiveness.

6. Replace Worn Parts

If any of the parts on your spring-loaded knife are worn out, they will need to be replaced in order to fix the problem. Common parts that need to be replaced include springs, blades, and screws. You can find replacement parts at your local hardware store or online. It’s important to make sure the parts you purchase match the model of the knife you have.

Once you have the new parts, simply unscrew the old ones and replace them with the new ones. Be careful when handling the springs, as they can be difficult to control. Make sure all the parts are securely tightened before using the knife.

7. Disassemble and Clean the Knife

If your spring-loaded knife is not working properly, you may need to disassemble it and clean all of its parts. This should only be done if you are experienced in disassembling and cleaning knives. Be sure to take appropriate precautions when doing so, such as wearing protective gloves and eye protection.

Begin by carefully taking the knife apart. Carefully examine all the parts of your knife and look for any dirt, grime or debris that could be causing the problem. If you find any, clean it off with a soft cloth and some mild soap and water.

Once you’ve finished cleaning the parts, reassemble your knife according to the instructions provided with it. Make sure all of the parts are firmly in place and that everything is lined up correctly.

8. Take It to a Professional

If you are not experienced in repairing knives, it is best to take your spring-loaded knife to a professional for repairs. Knife repair professionals have the tools and experience necessary to fix most problems with knives.

They can usually repair broken springs, worn components, and damaged blades. If you are unsure about the type of repairs needed for your knife, it is best to take it to a professional for evaluation. This will ensure that your knife is repaired correctly and safely. Taking your spring-loaded knife to a professional can save you time and money in the long run.

9. Replace the Knife

If your spring-loaded knife is beyond repair or too old to be repaired, it may be time to invest in a new one. A good quality spring-loaded knife should last you many years if properly maintained and cared for.

A Good Quality Spring-loaded Knife

Look for knives with high-quality springs and mechanisms that are built to last. Replace the blade when it becomes dull, as a dull blade is more likely to slip and cause an injury. Be sure to read the manufacturer’s instructions for the proper use, maintenance, and storage of your knife.

10. Use it Safely

Once your spring-loaded knife has been fixed, it’s important to use it responsibly and safely. Always use caution when using a knife, and keep in mind that sharp blades can cause serious injury.

Be sure to keep the blade clean, sharp, and lubricated when not in use—this will help prevent it from becoming rusty or corroded. Additionally, always make sure the knife is fully closed and locked before putting it away or handing it to someone else.

Some Common Mistakes When Fixing a Spring Loaded Knife

1. Not Knowing Proper Knife Disassembly Techniques:

Properly disassembling a spring-loaded knife is an important step in the repair process, as it ensures all parts of the mechanism are properly accessed and maintained. Incorrect disassembly can damage or misalign internal parts, making it difficult to repair or replace components. It’s best to consult a guide or an expert to make sure you’re doing it correctly.

2. Failing to Lubricate the Spring:

Lubrication is key for any mechanical component, and your spring-loaded knife is no exception. Applying oil to the spring will help keep all components moving properly and reduce wear and tear on delicate parts. Make sure you use a light oil that won’t collect dirt or debris, such as 3 in 1 Oil.

Applying Oil to the Spring

3. Replacing Parts Incorrectly:

If one part of your knife needs replacing, make sure you get the exact same part from either the original manufacturer or an authorized seller with expertise in spring-loaded knives. Using incorrect parts may cause malfunctions within the mechanism or worse.

By avoiding common mistakes and doing some research, you can quickly have your knife back in working order! With proper maintenance and care, it should last you for many years to come.

Can You Fix a Snapped Knife?

Unfortunately, in some cases, a knife can become so damaged that it cannot be repaired. If the blade has snapped off or the spring itself is bent beyond repair, then you may need to replace the entire knife. You should be able to purchase an identical model or one similar enough to fit into your existing handle with minimal modifications.

Make sure to double-check the measurements and specifications before placing your order to avoid any surprises. If you do buy a new knife, make sure to follow safe practices when installing it. Wear safety glasses and gloves and work in a well-ventilated area. Make sure no children or animals are present during the assembly to avoid any potential accidents.

Spring-loaded Knife Can Last You for Years to Come


Spring-loaded knives are a great option for people who want the convenience of having a Knife always at hand without taking up valuable pocket space. With proper care, your spring-loaded knife can last you for years to come. 

By following these simple steps on how to fix a spring-loaded knife, you will be able to fix your spring-loaded knife in no time and get back to using it as intended.

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Enrique Howard

Hi, I am Enrique. I started my professional life as a handyman and did a lot of external and internal repair of home and office with a little bit of electric and plumbing support. I have extensive experience in tools testing such as drilling, turning, milling, and non-conventional machining like EDM. So let me help you on your journey towards becoming an enlightened DIYer with amazing tools that you can use on your project.

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