Automatic knives, whether out-the-side (OTS) or out-the-front (OTF), require regular maintenance to ensure optimal performance and longevity. Unlike manual folders, automatic knives rely on internal springs and mechanisms that demand specific care. Neglecting proper maintenance can lead to sluggish deployment, misfires, and even mechanical failure. Here’s how to keep your automatic knife in peak condition.

Some automatic knives can be disassembled for deep cleaning, while others have warranties that prohibit it. Always check your manufacturer’s guidelines before taking apart your knife. Many OTF knives feature complex internals, and disassembly is not always recommended unless you’re experienced. OTS knives, on the other hand, can often be disassembled with the right tools, allowing for a more thorough cleaning.

If disassembly isn't an option, you can still clean your knife effectively. Blow out debris, lint, and dust from the mechanism and handle using compressed air. A cotton swab or microfiber cloth with 90%+ isopropyl alcohol can help remove built-up grime on the blade and moving parts.

Automatic knives require lubrication to function smoothly, but too much oil can attract debris and gum up the mechanism. Light oil, such as high-quality knife oil or gun oil, should be applied sparingly to pivot points and springs. Some OTF users prefer dry lubricants, like graphite or Teflon-based oils, to avoid buildup inside the handle. Thick greases should be avoided as they can slow down the action and attract dirt.

Keeping the blade sharp is essential, as dull blades require more force to cut, which can put strain on the opening mechanism. Using a guided system, whetstone, or ceramic rods will help maintain a sharp edge. Over-polishing should be avoided, as excessive stropping can remove too much material and affect the blade’s geometry.

Regular cycling of the knife is necessary to keep the springs active. If deployment slows or misfires increase, inspect the knife for signs of weakened springs or misalignment. In such cases, contacting the manufacturer about replacement parts may be necessary. Ensuring the spring and mechanism remain in good condition is crucial to maintaining the knife’s reliability.

Proper storage and handling also contribute to the longevity of automatic knives. Storing the knife in a dry environment prevents corrosion, even on stainless steel blades. A protective sheath or pouch can keep dust and pocket lint from accumulating. Additionally, avoiding prolonged exposure to extreme heat is important, as excessive heat can weaken the internal springs over time.

To keep the knife functioning properly, avoid common mistakes. If the knife misfires, don’t force it open; rather, check for obstructions. Using an automatic knife as a pry tool can put stress on the blade and damage the opening mechanism. Also, steer clear of over-lubrication, since too much oil can attract dirt and lead to a gummed-up internal mechanism.

Automatic knives are precision tools that require dedicated upkeep. Whether you own an OTF or OTS model, regular cleaning, proper lubrication, and mindful use will keep your knife operating reliably for years to come. By following these maintenance steps, you’ll ensure smooth, consistent performance every time you deploy your automatic blade.