The best butterfly knives can easily chop up an insect, cut a hole in an apple, or slice a breadstick. And thanks to their unique shape, you wont need to sharpen them as often, making these knives a great alternative to their counterparts.

What to Consider When Choosing the Best Butterfly Knife Trainers

Butterfly knives arent new technology. In fact, these pocket-size tools have been around for centuries and have a long history of use in both combat and hunting. But modern innovations in manufacturing have made it possible to own a high-quality butterfly knife for a reasonable price.

The three main types of butterfly knives are manual, electric, and battery-powered. Each has its benefits and downsides, so consider each before making a purchase.

Manual Butterfly Knives

The oldest and most traditional method of training with a butterfly knife is to use a manual version. These knives are simple and straightforward, with an open blade that closes with a simple mechanism operated by a lever or a pivot. Manual butterfly knives tend to be less expensive than their electric and battery-powered counterparts.

However, they require a lot of practice to become proficient with. The blade can close too quickly and cut off a bit of the food, and the handle can get in the way as well. These knives also take up more space because they need to be larger to accommodate the mechanism.

Electric Butterfly Knives

An electric butterfly knife uses a motor to drive the blade. This makes it easier to control the speed and pressure when cutting through flesh, and the blade stays cooler since it doesnt need to run through as many layers of skin. These knives are also lightweight, which makes them easier to wield.

The biggest downside to electric butterfly knives is the price. They can be quite pricey, especially if you want a quality model that will last for years. Most models feature plastic parts that can become loose over time and cause the knife to jam or stop working altogether. Electric butterfly knives also require a power source, which may not be convenient in every situation.

Battery-Powered Butterfly Knives

A battery-powered butterfly knife uses a rechargeable lithium-ion battery to operate the blade. These knives are the most modern style, and they’re the most versatile option since the user can train with the setting that works best for the task at hand. However, they’re pricier than either manual or electric versions, and they may only work for a few hours before needing a recharge.

These batteries can be built into the handle or in a separate pack, depending on the model. Separate packs allow for multiple blades to be used without having to swap out the entire handle, but they make it more difficult to monitor how much charge remains.

Blade Material

Like many traditional knives, the blade for a butterfly knife is made from steel alloys that were developed for strength and durability. The type of steel affects the blade shape, hardness, and resistance to corrosion and rusting.

  • Hagane steel is hard and durable, making it resistant to rust and corrosion. It also has a low carbon content, so the blade stays sharper for longer.
  • Nakiri is a type of soft steel that was developed for fabric-cutting abilities. Because of this, it becomes easier to slice through thick pieces of meat and produce.
  • Honesuki steel has a higher carbon content than hagane or nakiri, giving it improved strength and hardness. This makes it suitable for use as an outdoor tool that might see some exposure to the elements.

Blade Features

Butterfly knives have long been a favorite of martial artists for their simplicity and versatility. Unlike a standard kitchen knife, they dont have a serrated blade, which can tear through meat and vegetables rather than cut cleanly. Instead, the blade features a tip that curves slightly forward, creating a point that sits right at the center of the mouth.

This tip helps the blade maintain its edge for a smoother cut. Some blades feature small divots along the side that help reduce drag, which improves efficiency. Other blades have small hooks near the tip that help secure the meat during slicing.

Handle Design

A butterfly knife handle tends to be large and ergonomic to ensure better grip. Many handles feature textured grips that help maintain a firm hold.

Some models also include a safety feature that prevents accidental activation. A typical example would be a button that pops up just below the trigger, requiring the user to press down before squeezing the top of the handle to fire the blade.

Locking Mechanism

A common feature found in butterfly knife handles is a locking mechanism. These locks prevent the knife from opening accidentally during storage or while in use.

Many of these locks are designed with a simple button that the user must depress before squeezing the top of the handle to unlock the blade. Other mechanisms use a slider or a pivot that allows the user to push the button on the side of the handle to unlock the blade.

Length and Width

A butterfly knife isnt very long or wide, so its relatively easy to manage. The average length is about 5 inches, and the average width is about 2.25 inches. The largest available butterfly knife is 7 inches long and 3.5 inches wide.