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How to Tighten a Butterfly Knife-Surprisingly Easy!


The name “butterfly knife” comes from the Filipino word “Balisong,” which translates as “broken horn” and is the origin of the phrase. When closed, the blade of this knife is concealed behind a split handle. It is therefore vital to understand how to tighten a butterfly knife.

Over time, the handles of butterfly knives get looser, mainly due to repeated use. The handle’s pivot pins must be re-tightened to prevent further damage when this transpires.

The method for tightening can be accomplished with commonly available hand devices. Today, we’ll look at and learn about the quickest and most efficient way of tightening a butterfly knife.

The easiest and simplest way to Tighten a Butterfly Knife

What exactly is a butterfly knife?

A butterfly knife, also known as a balisong, is a knife with a blade contained in parallel sheaths that are hinged at the blade’s base. The knife’s handle is formed by rotating the two sheaths 180 degrees in opposite directions on their hinges.

It can be challenging to turn the sheaths into their handle position if the sheaths’ hinges are stiff, as they typically are when initially acquired.

Tightening a Butterfly Knife

Butterfly knives are operated by connecting the handle to the blade via hinges in the handle. The hinge-pins on your butterfly knife might wear out with time, making the operation sloppy and loose. Some butterfly knives use screws for hinges, allowing you to adjust the tension; others have pins, which are smoother to use but must be replaced when worn out.

This can be accomplished with a few readily available supplies and a simple trip to your local hardware shop.

So, without any further ado, let’s get started.

You’ll need the following items:

  • Allen keys or screwdrivers

1st Step

The First Step is to unlock the butterfly knife’s clasp, located at the bottom of the blade. Remove the one handle from each end of the knife, forming a horizontal line with the knife blade parallel to the handles on both ends.

2nd Step

Tighten the pivot screw on the handle with a screwdriver or Allen key appropriate for the job. This location, where the handle meets the blade base, is where the pivot screw can be found. It will be necessary to select the appropriate butterfly knife for tightening the screw because each one is unique in design.

3rd Step

The third Step involves replacing the opposite handle and re-performing the task; the butterfly knife should be returned to its original position.

4th StepĀ 

Reopen the knife and check the handles to make sure they haven’t been over-tightened, if necessary. Butterfly knives should be able to open and close quickly, and they should not become stuck in motion while doing so. Check to see that the blade is still easily opened. If this is not the case, release the pivot screws just enough to allow the knife to swing open smoothly.


Butterfly knives are not permitted in some jurisdictions. Make sure to verify with your local authorities before purchasing or repairing one.


There are several distinct methods for tightening a butterfly knife, but none of them should be attempted by someone already familiar with the device’s operation. Hopefully, this post has provided you with further information on tightening a butterfly knife. If you’re interested in learning more about pocket knives, be sure to follow us on our social media pages.

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