How to Sharpen OTF Knife: A Full Guide

Welcome to the ultimate guide on how to sharpen OTF knife! Whether you’re an avid collector or an everyday user, maintaining the sharpness of your OTF knife is essential for its longevity and effectiveness.

To sharpen an OTF knife, you will need a sharpening stone with a grit between 1000-2000, a lubricant like water or oil, and a steady hand. First, apply a few drops of lubricant on the stone and hold the blade at a 20-degree angle against the stone. Starting from the base of the blade, draw the blade towards you while maintaining the angle. Repeat this process on the other side of the blade, ensuring that you sharpen both sides evenly. Continue the process until you achieve the desired sharpness.

In this guide, I will walk you through the step-by-step process of sharpening your OTF knife using simple and easy-to-follow techniques.

I will also cover important factors to consider when selecting the right sharpening tools and materials for your knife. By the end of this guide, you’ll have all the knowledge and skills necessary to sharpen your OTF knife like a pro. So, let’s get started!

How to Sharpen OTF Knife

how to sharpen otf knife

Sharpening an OTF (Out-The-Front) knife, especially a curved one like a spoon or pruning knife, can be a bit challenging for some. However, with the right tools and techniques, it can be done easily and effectively.

In this article, I will guide you through the process of sharpening your curved OTF knife step-by-step, including how to sharpen a curved spoon knife, a curved pruning knife, a round knife, and a curved paring knife. I will also provide tips on how to sharpen the thinnest OTF knife to ensure its longevity.

Before i dive into the sharpening process, let’s first understand the anatomy of a curved OTF knife. Unlike straight knives, curved knives have a concave cutting edge that requires special attention while sharpening.

Additionally, the tip of the blade is usually thinner and more delicate than the rest of the blade, making it susceptible to damage during sharpening. Therefore, it’s crucial to use the right sharpening tools and techniques to avoid damaging the blade.

Tools Required:

  • Sharpening Stone (preferably diamond or ceramic)
  • Honing Oil (optional)
  • Leather Strop
  • Microfiber Cloth
  • Protective Gloves

Steps to Sharpen a Curved Knife:

Step 1: Choose the Right Sharpening Stone

To sharpen a curved OTF knife, you need to select a sharpening stone that’s appropriate for the type of blade you have. For example, a diamond or ceramic sharpening stone is ideal for sharpening curved knives because it can remove material from the blade more effectively than other types of stones.

Step 2: Prepare the Sharpening Stone

Wet the sharpening stone with water or honing oil (if using) and place it on a flat surface. Honing oil can help to lubricate the blade while sharpening and prevent it from overheating.

Step 3: Hold the Knife

Put on protective gloves to avoid injuring yourself while sharpening. Hold the knife by the handle with the blade facing away from you, and position the blade perpendicular to the sharpening stone.

Step 4: Find the Bevel Angle

Curved knives have a bevel angle that differs from straight knives. To find the bevel angle of your curved knife, place the blade flat on the sharpening stone and slowly raise the spine until you feel the bevel angle catch on the stone.

Step 5: Sharpen the Blade

Using light pressure, move the blade along the sharpening stone in a sweeping motion, maintaining the bevel angle you found in Step 4. Repeat this motion on both sides of the blade until you have achieved the desired sharpness.

Step 6: Use a Leather Strop

After sharpening the blade, use a leather strop to remove any burrs and polish the edge. Hold the strop in one hand and the knife in the other, and draw the blade across the strop, moving away from the edge.

Step 7: Clean the Blade

Use a microfiber cloth to clean the blade and remove any metal filings or debris. Wipe the blade with the cloth in the opposite direction of the cutting edge.

Tips for Sharpening Different Types of Curved Knives:

  • For a curved spoon knife, sharpen the inside of the curve first, then the outside.
  • For a curved pruning knife, sharpen the inside of the curve first, then the outside. Be careful not to damage the tip of the blade.
  • For a round knife, sharpen both the concave and convex edge separately.
  • For a curved paring knife, follow the same steps as a curved spoon knife.

Tips for Sharpening the Thinnest OTF Knife:

  • Use a sharpening stone with fine grit to avoid removing too much material from the blade.
  • Avoid putting too much pressure on the blade while sharpening, as it can cause the blade to warp or bend.
  • Use a consistent angle while sharpening the blade to ensure an even edge.
  • Take breaks while sharpening to avoid overheating the blade.
  • Finish with a leather strop to polish and refine the edge.

How to Fix a Benchmade OTF Knife

OTF Knife

If you’re a fan of Benchmade knives, then you know that their OTF (out-the-front) knives are some of the best on the market. But what do you do if your Benchmade OTF knife starts to malfunction? Luckily, there are a few things you can do to fix it.

First, make sure that the problem isn’t with the blade. If the blade is bent or damaged, it will need to be replaced. If it’s just dull, then you can sharpen it yourself with a sharpening stone.

Next, check to see if the problem is with the firing button. If the button is jammed or broken, you’ll need to replace it. If neither of those solutions fixes the problem, then it’s likely that something is wrong with the internal mechanism of the knife.

This is a more complex issue and will require you to disassemble the knife and take a look at the parts inside. If you’re not comfortable doing this yourself, then you should take it to a qualified Benchmade repair technician.

Frequently Asked Questions (FAQs):

Can I Sharpen My Micro tech Knife?

Yes, you can sharpen your Micro Tech knife. However, it is important to note that sharpening your knife may void the warranty. For best results, I recommend taking your knife to a professional sharpener.

Do OTF Knives Wear Out?

Like any knife, an OTF knife will eventually wear out. The blade will become dull and the mechanism may become less reliable over time. However, OTF knives are designed to be durable and should last for many years with proper care.

To extend the life of your knife, avoid using it on hard surfaces such as concrete or metal. Also, be sure to clean and lubricate the blade and mechanism regularly. With proper care, your OTF knife should give you years of dependable service.

Are OTF Knives Weak?

No, OTF knives are not weak. In fact, they are quite strong and durable. The reason why some people may think that they are weak is because of the way they are designed.

OTF knives have a small blade that is held in place by a spring-loaded mechanism. This design makes them ideal for quick, one-handed opening and closing, but it also means that the blade is less likely to be as sturdy as a fixed-blade knife. However, this does not make OTF knives weak – they are still able to withstand a lot of wear and tear.

What Kind of Oil Do You Use in a Otf Knife?

If you’re looking to buy an OTF knife, one of the most important factors to consider is what kind of oil you’ll use to keep it in good condition. Here are a few different options to choose from, each with their own benefits and drawbacks: 1. Mineral oil: This is a popular choice for many people because it’s relatively inexpensive and easy to find.

However, it can be difficult to remove if it gets on your clothing or other surfaces, and it doesn’t provide much protection against rust or corrosion. 2. WD-40: This is a common household product that can also be used on OTF knives. It does a good job of repelling water and protecting against rust, but it can attract dirt and grime over time.

3. Gun oil: This is typically used for firearms, but it can also be used on OTF knives. It’s very effective at preventing rust and corrosion, but it can be expensive compared to other options. 4. Baby oil: Believe it or not, this common household product can actually be used on OTF knives (and other knives as well).

It’s great for preventing rust and corrosion, but like WD-40, it can attract dirt and grime over time if not cleaned regularly.


If you’re looking to sharpen your otf knife, there are a few things you’ll need to do. First, you’ll need to find a sharpening stone. Second, you’ll need to find a honing rod.

Third, you’ll need to find a polishing compound. fourth, You’ll need to find a strop. fifth, You will also want to invest in some patience and practice!

Robert Dennis

I am Robert Dennis - A professional grill and smoker technician, I have over 10 years of experience in the industry. I am skilled in the repair and maintenance of all types of grills and smokers and am knowledgeable in the use of a variety of tools and techniques. I share my knowledge and experience to help readers understand the inner workings of grills and smokers and how to maintain them properly. I am dedicated to providing the best information to help readers keep their grills and smokers in top working condition. - Serve Yourself -

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