How Do You Sharpen a Chain Saw? – Expert Guide

If you use a chain saw on a regular basis, then you know that it’s important to keep the chain sharp. Failing to do so can result in decreased cutting performance and dangerous situations. Fortunately, it’s not too difficult to sharpen a chain saw yourself. In this blog post, we’ll walk you through the steps involved in sharpening a chain saw. We’ll also provide some tips for ensuring that your chain saw stays sharp. So read on to learn more! 

How Do You Sharpen a Chain Saw?

Sharpening a chain saw is no easy feat, and sharpening chains require specialized equipment. However, it is possible to sharpen your own chainsaw without fancy tools if you understand what you’re doing.

Step 1: 

Remove the Chain When sharpening a chain saw, it’s important to remove the actual blade first. You can do this by placing your saw in a bench vise and loosening the bolts that hold the blade in place. Once these are loose, gently lift up on one end of the blade to slip it out of the slots. 

Step 2:

Clean the Blade When you’re removing the blade, you’ll want to clean any rust and dirt off it with a wire brush. This will ensure that your saw is as sharp as possible after sharpening it. 
Once your blade is clean, give it a quick inspection using a magnifying glass or power tool. If there are spots on the blade where the coating has been compromised, then these areas need to be ground down and smoothed out before moving on to step three.

Step 3: 

Sharpen Your Saw Once your blade is free from defects and rough patches, you can move on to sharpening it so that it’s ready for use once again. The best way to sharpen it is with a saw blade sharpener or grinder. These tools are specifically designed for quickly grinding out the imperfections on your blade.

Step 4: 

Lubricate the Saw Once you’ve sharpened your chain saw’s blade, it’s time to lube up! Apply some lubricating oil to your saw in order to ensure that it lasts longer and runs smoothly when in use. You can also apply oil to the inside of the bar in order to keep rust from forming there over time.


  • Bench Vise (to secure the saw)
  • Oil for lubricating the teeth of the blade
  • Grinder or Saw Blade Sharpener
  • Bristle Brush (to clean off metal filings)
  • Pliers
  • Wire Brush (to remove rust from the blade)
  • Metal File or Chain Saw Sharpener File
  • These tools will aid in keeping your saw at its best. In addition, you’ll want to get a pair of gloves and safety glasses for protection. Finally, you’ll need the right type of lubricating oil for your chain saw.

How to Sharp a Chain Saw:

Learning how to sharpen a chain saw is important for keeping your chainsaw in good condition and functioning at its best. This guide will teach you the basics of sharpening a chain saw, as well as how to keep it properly lubricated. 

Sharpening a chain saw isn’t difficult, but it does require specific tools. You’ll need to remove the blade from your saw in order to sharpen the teeth on it. As long as you have access to these types of tools, then learning how to sharpen a chain saw is simple enough!

Once you’ve learned how to sharpen a chain saw, you’ll need to lubricate it in order to keep the blade running smoothly. This maintenance task takes only a few minutes and can help your saw last for many years.

Get Ready to Sharpen:

A chainsaw is a powerful tool, and it’s important to keep it sharp so you can cut through whatever you need with ease. This guide will walk you through the process of how to sharpen a chain saw so that your saw is always ready to go when you need it. 

First, you’ll need to remove the blade from your chainsaw so you can sharpen it. You can do this by loosening the bolts that hold the blade in place and slipping it out of the slots. Once your saw’s blade is free, clean any rust or dirt off of it with a wire brush. From there, use a grinder or saw sharpening tool to sharpen your blade. Once you’re done, it’s time to lubricate the inside of the bar in order to reduce rust. 

Right Angles:

This chainsaw sharpening file helps you to get the perfect angle every time, for a clean and precise edge. The handy guide provides consistent angles, so your chainsaw is always razor-sharp.

  1. Using a rotary tool with a grinding wheel, begin to grind out the sides of the blade that need sharpening.
  2. Use your file to flatten out any rough spots on the outside edge of the blade.
  3. After use, wipe down your chain with lubricating oil so it will continue running smoothly and will reduce the likelihood of rust formation.
  4. Place your saw in a bench vise and tighten the bolts to hold it in place. Clean any dirt or rust off the blade with a wire brush so you get an accurate picture of how sharp or dull your blade is.
  5. Use a file to make sure all rough patches are flat and smooth.
  6. Stop filing once you’ve reached an angle of fewer than 30 degrees.
  7. Apply oil to the blade and inside of the bar on your saw to reduce rust formation without compromising cutting power.
  8. Have fun, but be careful! Remember that a chainsaw is a dangerous tool that requires some skill to use safely. Always use one with a partner and make sure he or she is clear on your plan before you get started.
  9. Lean the top of the file against the edge of the blade to create an angle that matches up perfectly to the edge of your saw’s teeth.
  10. Use light but steady pressure while filing in order to keep the saw running smoothly and to prevent possible injury.
  11. The file should be placed in the same position as when you were grinding with the rotary tool, but this time push down straight into the blade instead of across it.
  12. You may need up to three different files in order to get your blade perfectly sharpened. Each style is used for a different purpose, and the more you practice using them properly, the better your blade will be.
  13. Use a file with a slightly curved edge to smooth out any edges on the side of your blade that may have been sharpened too high or unevenly.
  14. File only in one direction to prevent filing excess material off of your blade.
  15. Place the file against the top part of the blade in order to sharpen it evenly with both sides.
  16. Push down on each side of the saw’s teeth, alternating between them until you’ve reached the desired angle. If you need a sharp edge for heavy-duty cutting, aim for no more than 30 degrees. If you’re filing for light-duty purposes, aim for 45 degrees, which is the highest angle most files are able to achieve.
  17. Every saw is different, so try holding your file at a variety of angles in order to see what works best with your blade. Once you find the right one, stick with it.
  18. Keep your file at the same angle that you used to create the edge of your saw’s teeth when filing, but this time uses light pressure instead of pushing down on it.
  19. Use your chain saw sharpening guide to maintain your blade’s perfect cutting angles. This generally means moving the file in an upside-down V shape, with the point of the V near the blade.
  20. Place your second file evenly along the side of each tooth as you push it down into place.
  21. Repeat this process across two or three teeth in order to get a good idea as to whether your blade needs filing. If your file is getting dull, switch to a downward motion instead of a sideways one.

Away from Your Body:

Chain saws are dangerous tools, and they need to be treated with respect. That’s why it’s important to know how to sharpen them correctly so that you can avoid injury. This guide will show you how to do just that.

You can tell if your chain needs to be sharpened by looking for these three things:

  • Is the cutting edge-nicked or bent? If so, you’ll need to remove that part of the blade.
  • Does your saw vibrate when you turn it on? If so, it may be dull.
  • Are your teeth uneven or do they appear to point inwards? If so, you’ll need to file those away.

Check Depth Gauge Heights:

If you’re looking to keep your chain saw in top condition, you need to make sure the depth gauge heights are properly adjusted. This handy guide makes it easy to get the job done right. With just a few simple steps, you can have your chain saw sharpened and ready to go!


Chainsaws are an essential tool for people who work with wood. They’re not just used by tree cutters, but also contractors and electricians to take down power lines during storms or even homeowners to clear away a fallen limb from their property. If you need a new chainsaw bar cutter blade, knowing how to measure it correctly will help ensure that the replacement is going to fit your needs.