How To Sharpen Chain Saw Chains: Beginner’s Guide

Are you wondering how to sharpen a chainsaw blade? The simple answer is: you can use a file, a manual guide, or an electric chainsaw chain sharpener. This guide will show you how to sharpen your chainsaw chain using different chainsaw sharpening tools and techniques. A sharp chain is safer and more efficient, so let’s get started.

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Why Sharpening Your Chainsaw Chain is Important

A dull chainsaw is not only frustrating but also dangerous. Sharpening your chainsaw blade sharpening makes the saw cut faster and smoother. It also reduces the risk of kickback and makes the saw easier to control. A sharp chain puts less strain on the saw’s engine, prolonging its life.

Signs Your Chain Needs Sharpening

• The saw cuts slowly and produces sawdust instead of chips.
• You have to apply more pressure than usual to make the saw cut.
• The saw pulls to one side while cutting.
• The chain rattles or vibrates excessively.
• Smoke comes from the chain even when it’s properly lubricated.

Gathering Your Chainsaw Sharpening Tools

Before you start, you’ll need the right chainsaw sharpening tools. Here’s a list:

• Round file: This is the primary tool for filing chainsaw chain. Choose the correct size file for your chain’s pitch (more on this later).
• File guide: A file guide helps you maintain the correct angle for sharpening chainsaw chain.
• Flat file: Used for filing down the depth gauges (rakers).
• Depth gauge tool: Measures the height of the depth gauges.
• Vise or chain sharpener holder: To hold the chain steady while you sharpen.
• Gloves: To protect your hands.
• Safety glasses: To protect your eyes from metal filings.
• Brush: For cleaning the chain.

Choosing the Right File Size

The size of the round file you need depends on the pitch of your chain. The pitch is the distance between any three consecutive rivets divided by two. Check your saw’s manual or the chain itself for the correct file size.

Here’s a general guideline:

Chain Pitch	File Size
1/4″	5/32″ (4.0 mm)
.325″	3/16″ (4.8 mm)
3/8″	5/32″ (4.0 mm) or 7/32″ (5.5 mm)
.404″	7/32″ (5.5 mm)

Step-by-Step Guide: Sharpening Chainsaw with File

This is a traditional method and a cost-effective way for sharpening chainsaw chain.

Step 1: Securing the Chainsaw

Place your chainsaw in a vise or use a chain sharpener holder. This will keep the chain from moving while you work. Make sure the chain is clean.

Step 2: Identifying the Cutter Type

Examine your chain to determine the type of cutters. Most chains have either chisel or semi-chisel cutters. Chisel cutters have a sharp, square corner, while semi-chisel cutters have a rounded corner. This will affect the angle for sharpening chainsaw chain.

Step 3: Setting the Correct Angle

Use your file guide to maintain the correct angle for sharpening chainsaw chain. Most chains require a 25-30 degree angle for the top plate and a 60-degree angle for the side plate. The file guide will help you keep these angles consistent.

Step 4: Filing the Cutters

1. Place the round file in the file guide.
2. Position the file against the cutter.
3. Using smooth, even strokes, file the cutter from the inside out.
4. Apply light pressure on the forward stroke and release on the return stroke.
5. Count the number of strokes you use on the first cutter. You’ll use the same number of strokes on all the other cutters to ensure they are all the same length.
6. Repeat this process for each cutter on the chain.

Step 5: Filing the Depth Gauges (Rakers)

The depth gauges (rakers) control how much the cutter bites into the wood. As you sharpen the cutters, the depth gauges become relatively higher. You need to file them down to maintain the correct height difference.

1. Use a depth gauge tool to measure the height of the depth gauges.
2. If the depth gauge is too high, use a flat file to file it down.
3. File the depth gauge evenly and smoothly.
4. Round off the front of the depth gauge slightly.

Step 6: Checking Your Work

After sharpening the entire chain, check your work. The cutters should all be the same length and have sharp, even edges. The depth gauges should all be the same height.

Using a Chainsaw Chain Sharpener

A chainsaw chain sharpener, especially an electric chainsaw sharpener, can make chainsaw blade sharpening faster and more precise. There are two main types: manual and electric.

Manual Chainsaw Sharpeners

Manual sharpeners are hand-operated tools that hold the chain and file at the correct angles. They are more accurate than freehand filing and easier to use than an electric chainsaw sharpener.

How to Use a Manual Chainsaw Sharpener

1. Secure the sharpener to a workbench or stump.
2. Place the chain in the sharpener, following the manufacturer’s instructions.
3. Adjust the sharpener to the correct angle for sharpening chainsaw chain.
4. Use the round file to sharpen each cutter, using smooth, even strokes.
5. Repeat the process for each cutter on the chain.
6. File the depth gauges as needed.

Electric Chainsaw Sharpeners

Electric chainsaw sharpeners use a grinding wheel to sharpen the cutters. They are faster and more efficient than manual methods, but they can also be more aggressive. It’s important to use them carefully to avoid removing too much material from the cutters.

How to Use an Electric Chainsaw Sharpener

1. Secure the sharpener to a workbench.
2. Place the chain in the sharpener, following the manufacturer’s instructions.
3. Adjust the sharpener to the correct angle for sharpening chainsaw chain.
4. Turn on the sharpener and gently lower the grinding wheel onto the cutter.
5. Use short, light touches to sharpen each cutter.
6. Repeat the process for each cutter on the chain.
7. File the depth gauges as needed.

Choosing the Best Chainsaw Sharpener

When choosing the best chainsaw sharpener, consider the following factors:

• Type: Manual or electric
• Accuracy: How well does it maintain the correct angles?
• Ease of use: How easy is it to set up and operate?
• Durability: How well is it made and how long will it last?
• Price: How much does it cost?

Here’s a table comparing manual and electric chainsaw chain sharpeners:

Feature	Manual Chainsaw Sharpener	Electric Chainsaw Sharpener
Speed	Slower	Faster
Accuracy	Good	Excellent
Ease of Use	Moderate	Moderate
Portability	High	Low
Price	Lower	Higher
Material Removal	Less Control	More Aggressive

Common Mistakes to Avoid When Sharpening a Chainsaw

• Using the wrong file size: This can damage the cutters and reduce the chain’s performance.
• Filing at the wrong angle: This can make the chain cut poorly and increase the risk of kickback.
• Removing too much material: This can shorten the life of the chain.
• Failing to file the depth gauges: This can make the chain cut slowly and unevenly.
• Not securing the chain properly: This can make it difficult to sharpen the chain accurately and safely.

Chainsaw Sharpening Tips for Beginners

• Start with a new or lightly used chain. It’s easier to learn on a chain that isn’t badly damaged.
• Take your time and focus on maintaining the correct angles.
• Practice on a scrap piece of wood to get a feel for how the chain should cut.
• Keep your files clean and sharp. A dull file will make the job harder and less effective.
• Lubricate the chain regularly to reduce friction and wear.
• Consider taking a class or watching online tutorials to learn more about how to sharpen a chainsaw blade.

Safety First!

• Always wear safety glasses and gloves when sharpening a chainsaw.
• Disconnect the spark plug wire to prevent accidental starting.
• Work in a well-lit area.
• Keep your work area clean and free of debris.

When to Replace Your Chainsaw Chain

Even with regular sharpening, a chainsaw chain will eventually wear out. Here are some signs that it’s time to replace your chain:

• The cutters are too short to be sharpened effectively.
• The chain is stretched or damaged.
• The drive links are worn or broken.
• The chain repeatedly comes off the bar.

Maintaining Your Sharpened Chain

• Clean your chain regularly to remove dirt and debris.
• Lubricate your chain with chain oil before each use.
• Store your chainsaw in a dry place.
• Inspect your chain regularly for damage.
• Consider using a chain grinder for professional-level sharpening.

FAQ: Sharpening Chainsaw Chains

What is the best way to sharpen a chainsaw chain?

The best chainsaw sharpener depends on your needs and experience. For beginners, a manual sharpener or sharpening chainsaw with file offers control and accuracy. Experienced users might prefer an electric chainsaw sharpener for speed and efficiency.

Can I sharpen my chainsaw chain while it’s on the saw?

Yes, you can sharpen the chain while it’s on the saw, but it’s generally easier and safer to remove the chain and secure it in a vise or chain sharpener holder.

How often should I sharpen my chainsaw chain?

Sharpen your chain whenever it becomes dull or shows signs of needing sharpening. This could be after every few uses or after every tank of gas, depending on the type of wood you’re cutting and how often you use the saw.

Who is qualified to sharpen a chainsaw chain?

Anyone can learn to sharpen a chainsaw chain. With the right tools and techniques, you can maintain a sharp chain yourself. However, if you’re not comfortable sharpening your own chain, you can take it to a professional sharpening service.

What angle should I use for sharpening my chainsaw chain?

The angle for sharpening chainsaw chain varies depending on the chain type. Consult your saw’s manual or the chain itself for the recommended angles. Generally, the top plate angle is 25-30 degrees, and the side plate angle is 60 degrees.

How do I know what size file to use for my chainsaw chain?

Check your saw’s manual or the chain itself for the recommended file size. You can also measure the pitch of the chain and use a file size chart to determine the correct size.

Is an electric chainsaw sharpener worth it?

An electric chainsaw sharpener is worth it if you use your chainsaw frequently and want to sharpen your chain quickly and efficiently. However, they can be more expensive than manual sharpeners, and it’s important to use them carefully to avoid damaging the chain.

By following this guide, you’ll be able to keep your chainsaw chain sharp and your saw running smoothly. Remember to always prioritize safety and take your time to do the job right.