Skip Tooth Chainsaw Chain (5 Expert Tips)

In recent years, the wood processing and firewood preparation industries have seen a significant shift towards efficiency and sustainability. One crucial element in achieving both is the right equipment, and that’s where the skip tooth chainsaw chain comes in. While not always the first choice for every cutting task, it holds a special place in the arsenal of many professionals and hobbyists alike. It’s not just about cutting wood; it’s about cutting smarter.

Understanding the Skip Tooth Chainsaw Chain

The skip tooth chainsaw chain is a variation of the standard chain that features fewer cutting teeth. This design is characterized by alternating cutting teeth and tie straps, creating a “skip” between each tooth. This configuration offers distinct advantages in certain cutting scenarios, but it’s crucial to understand its limitations as well.

What is a Skip Tooth Chain?

A standard chainsaw chain has a cutting tooth on every other link. A skip tooth chain, however, removes one of those teeth, leaving a longer gap between the cutters. This design reduces the number of teeth engaged in the wood at any given time.

Why Choose a Skip Tooth Chain?

The primary reason to opt for a skip tooth chain is to reduce the load on your chainsaw. This is particularly beneficial when:

Using a Longer Bar: I recall a project where we needed to fell some large diameter Douglas firs. Our standard chains were struggling with the 36-inch bar. Switching to a skip tooth chain allowed the saw to maintain its RPMs and cut more efficiently through the larger wood.
Cutting Large Diameter Wood: The reduced number of teeth means the saw has less resistance, allowing it to power through thick wood more easily.
Working with a Less Powerful Saw: If you’re using a smaller chainsaw, a skip tooth chain can help prevent bogging down.
Freeing a Stuck Chainsaw: The reduced chain contact is very helpful in this situation.

Advantages and Disadvantages

Advantages:

Faster Cutting in Large Wood: The reduced load allows for quicker cuts through large diameter logs.
Reduced Strain on Saw: Less resistance means less wear and tear on your chainsaw’s engine.
Better Chip Clearance: The wider gaps between teeth allow for more efficient chip removal, reducing the risk of clogging.

Disadvantages:

Rougher Cut: The larger gaps between teeth can result in a less smooth cut, which might not be ideal for precision work.
Increased Vibration: Some users report increased vibration due to the uneven distribution of cutting force. I have found this to be true, especially when using a skip tooth chain on smaller saws.
Higher Potential for Kickback: The more aggressive bite of each tooth can increase the risk of kickback, requiring extra caution.

Expert Tip #1: Matching the Chain to Your Chainsaw

Choosing the right skip tooth chain involves more than just picking one off the shelf. You need to consider your chainsaw’s specifications and the type of wood you’ll be cutting.

Understanding Chainsaw Specs

Every chainsaw has specific chain requirements, usually listed in the owner’s manual or on a sticker on the saw itself. These specs include:

Chain Pitch: The distance between three rivets divided by two. Common pitches are 0.325″, 3/8″, and 0.404″.
Chain Gauge: The thickness of the drive links that fit into the guide bar groove. Common gauges are 0.050″, 0.058″, and 0.063″.
Drive Link Count: The number of drive links needed for your specific bar length.

Using the wrong chain can lead to poor performance, increased wear, and even damage to your chainsaw. I once saw a colleague try to force a chain with the wrong pitch onto his saw. The result was a damaged drive sprocket and a very unhappy logger.

Bar Length Considerations

A longer bar generally benefits more from a skip tooth chain. The longer the bar, the more power it takes to pull the chain through the wood. A skip tooth chain reduces this load, allowing the saw to maintain its speed. Here’s a general guideline:

16-20 inch Bar: Standard chain is usually sufficient.
20-24 inch Bar: Skip tooth can be beneficial, especially for larger wood.
24+ inch Bar: Skip tooth is often recommended for optimal performance.

Wood Type Matters

The type of wood you’re cutting also plays a role in whether a skip tooth chain is the right choice.

Softwoods (Pine, Fir, Spruce): Skip tooth chains work well, as softwoods are easier to cut. The reduced resistance allows for faster cutting speeds.
Hardwoods (Oak, Maple, Hickory): Skip tooth chains can still be used, but it’s crucial to ensure your saw has enough power to handle the increased bite of each tooth. I’ve found that keeping the chain sharp is even more critical when cutting hardwoods with a skip tooth chain.

Expert Tip #2: Sharpening Your Skip Tooth Chain

A sharp chain is essential for safe and efficient cutting, especially with a skip tooth design. Because each tooth is responsible for removing more material, sharpness is paramount.

The Importance of a Sharp Chain

A dull chain not only cuts slower but also puts unnecessary strain on your chainsaw and increases the risk of kickback. A sharp chain, on the other hand, bites into the wood easily, resulting in smoother cuts and less effort.

I remember a time when I was too lazy to sharpen my chain before starting a big firewood project. I quickly regretted it. The saw bogged down constantly, the cuts were rough, and I was exhausted by the end of the day. I learned my lesson: a sharp chain is always worth the effort.

Tools for Sharpening

There are several tools you can use to sharpen your chainsaw chain:

Round File and File Guide: This is the most common and affordable method. It requires some practice to master, but it allows for precise sharpening.
Electric Chain Sharpener: This tool makes sharpening quicker and easier, but it can be more expensive.
Handheld Chain Sharpener: These sharpeners are portable and easy to use, making them ideal for on-the-go touch-ups.

Step-by-Step Sharpening Guide

Here’s how to sharpen your skip tooth chain using a round file and file guide:

Secure the Chain: Use a vise or clamp to hold the chainsaw bar steady.
Identify the Correct File Size: Consult your chainsaw’s manual to determine the correct file size for your chain pitch.
Use a File Guide: A file guide helps you maintain the correct angle and depth while sharpening.
Sharpen Each Tooth: Place the file in the file guide and hold it at the correct angle. Push the file forward, following the contour of the cutting tooth. Repeat this several times until the tooth is sharp.
Sharpen All Teeth: Sharpen each tooth in the same direction, then rotate the chain and sharpen the remaining teeth.
Check Depth Gauges: After sharpening, check the depth gauges (also known as rakers) and file them down if necessary. The depth gauges control how much the cutting tooth bites into the wood.
Test the Chain: After sharpening, test the chain by making a few cuts in a piece of wood. The chain should cut smoothly and aggressively.

Maintaining the Correct Angle

Maintaining the correct sharpening angle is crucial for optimal performance. Most file guides will indicate the correct angle for your chain. Here are some general guidelines:

Top Plate Angle: Typically between 25 and 35 degrees.
Side Plate Angle: Typically between 60 and 70 degrees.

I always double-check the angles with a protractor to ensure accuracy. It might seem like overkill, but it makes a noticeable difference in the chain’s performance and longevity.

Depth Gauge Adjustment

The depth gauges, or rakers, are the small metal tabs in front of each cutting tooth. They control how much the tooth bites into the wood. If the depth gauges are too high, the chain won’t cut effectively. If they’re too low, the chain will be too aggressive and prone to kickback.

Checking Depth Gauges: Use a depth gauge tool to check the height of the depth gauges.
Filing Depth Gauges: If the depth gauges are too high, use a flat file to carefully file them down. Be sure to maintain a consistent height across all depth gauges.

I once made the mistake of filing the depth gauges too low. The chain was incredibly aggressive, but it also vibrated excessively and was difficult to control. I had to replace the chain much sooner than expected.

Expert Tip #3: Adjusting Your Cutting Technique

Using a skip tooth chain requires a slightly different approach than using a standard chain. The more aggressive bite of each tooth means you need to be extra careful and precise.

Controlled Pressure

Avoid forcing the saw into the wood. Let the chain do the work. Apply steady, controlled pressure and allow the saw to maintain its RPMs. Forcing the saw can lead to binding, kickback, and increased wear on the chain and saw.

I’ve seen many beginners make the mistake of pushing too hard on the saw. This not only slows down the cutting process but also increases the risk of accidents. Remember, patience is key.

Avoiding Pinching

Pinching occurs when the wood closes in on the bar, trapping the chain. This is a common problem when cutting large logs, especially if they are under tension. To avoid pinching:

Use Wedges: Drive wedges into the cut to keep the wood from closing in.
Make Relief Cuts: Make a series of shallow cuts on the opposite side of the log to relieve tension.
Cut from Above: Gravity can help keep the cut open when cutting from above.

I once got my chainsaw stuck in a large oak log because I didn’t use wedges. It took me nearly an hour to free the saw, and I damaged the chain in the process. Now, I never start a big cutting job without a set of wedges.

Recognizing and Avoiding Kickback

Kickback is a sudden, uncontrolled upward or backward movement of the chainsaw bar. It’s one of the most common and dangerous chainsaw accidents. Skip tooth chains, with their more aggressive bite, can increase the risk of kickback. To minimize the risk:

Use a Chainsaw with Kickback Protection: Many modern chainsaws have features like chain brakes and low-kickback chains.
Maintain a Firm Grip: Keep both hands firmly on the saw, with your thumbs wrapped around the handles.
Avoid Cutting with the Tip of the Bar: The tip of the bar is the most likely area to cause kickback.
Be Aware of Your Surroundings: Make sure there are no obstructions that could cause the bar to pinch or bind.

I always wear appropriate safety gear, including a helmet, eye protection, hearing protection, and chaps, to protect myself from kickback and other potential hazards.

Expert Tip #4: Maintaining Your Chainsaw and Chain

Proper maintenance is essential for keeping your chainsaw and chain in good working order. Regular maintenance can extend the life of your equipment and ensure safe, efficient cutting.

Chain Lubrication

Adequate chain lubrication is crucial for reducing friction and wear. Use a high-quality bar and chain oil and check the oil level frequently. A dry chain will quickly overheat and dull, leading to premature wear and potential damage to your chainsaw.

Checking Oil Level: Check the oil level before each use and refill as needed.
Adjusting Oiler: Adjust the oiler to ensure adequate lubrication. The chain should be lightly coated with oil during operation.
Using the Right Oil: Use a bar and chain oil specifically designed for chainsaws. Avoid using motor oil or other substitutes, as they may not provide adequate lubrication.

I once neglected to check the oil level on my chainsaw and ended up running the chain dry. The chain overheated and stretched, and I had to replace it after only a few hours of use. Now, I make it a habit to check the oil level every time I refuel the saw.

Cleaning the Chainsaw

Regularly cleaning your chainsaw can prevent buildup of sawdust, resin, and other debris that can clog the engine and reduce performance.

Cleaning the Air Filter: Clean the air filter regularly to ensure proper airflow to the engine. A dirty air filter can cause the engine to run poorly and overheat.
Cleaning the Bar and Chain: Remove the bar and chain and clean them with a brush and solvent to remove sawdust and resin.
Cleaning the Sprocket: Clean the sprocket to remove any debris that could interfere with the chain’s movement.

I use compressed air to blow out the sawdust and debris from the chainsaw after each use. This helps keep the saw running smoothly and prevents buildup that can be difficult to remove later.

Storing Your Chainsaw

Proper storage can protect your chainsaw from damage and extend its life.

Drain Fuel: Drain the fuel tank before storing the saw for an extended period. Gasoline can degrade over time and cause problems with the carburetor.
Store in a Dry Place: Store the chainsaw in a dry place to prevent rust and corrosion.
Use a Bar Cover: Use a bar cover to protect the chain and prevent accidental cuts.

I store my chainsaw in a case to protect it from dust and damage. I also make sure to drain the fuel and clean the saw before storing it for the winter.

Expert Tip #5: Safety First

Chainsaw operation is inherently dangerous, and it’s crucial to prioritize safety at all times. Always wear appropriate safety gear and follow safe cutting practices.

Essential Safety Gear

Helmet: Protects your head from falling branches and kickback.
Eye Protection: Protects your eyes from flying debris.
Hearing Protection: Protects your ears from the loud noise of the chainsaw.
Chainsaw Chaps: Protect your legs from accidental cuts.
Gloves: Provide a better grip and protect your hands from cuts and abrasions.
Steel-Toed Boots: Protect your feet from falling logs and accidental cuts.

I never operate a chainsaw without wearing all of my safety gear. It might seem like overkill, but it’s not worth the risk. I’ve seen firsthand the devastating injuries that can result from chainsaw accidents.

Safe Cutting Practices

Read the Owner’s Manual: Familiarize yourself with the chainsaw’s features and safety instructions.
Inspect the Chainsaw: Before each use, inspect the chainsaw for any damage or defects.
Clear the Work Area: Clear the work area of any obstacles that could cause you to trip or lose your balance.
Maintain a Stable Stance: Keep your feet firmly planted and maintain a stable stance.
Avoid Cutting Above Shoulder Height: Cutting above shoulder height is dangerous and increases the risk of kickback.
Never Cut Alone: Always work with a partner in case of an emergency.

I always take a few minutes to assess the situation before starting a cutting job. I check for hazards, plan my cuts, and make sure I have a clear escape route in case of an emergency.

First Aid Knowledge

Knowing basic first aid can be crucial in the event of a chainsaw accident.

Stop the Bleeding: Apply direct pressure to the wound to stop the bleeding.
Clean the Wound: Clean the wound with soap and water to prevent infection.
Seek Medical Attention: Seek medical attention as soon as possible, even for minor injuries.

I keep a well-stocked first aid kit in my truck and I’m trained in basic first aid and CPR. I hope I never have to use it, but I’m prepared in case of an emergency.

Case Study: Using Skip Tooth Chains for Firewood Production

I once worked on a large-scale firewood production project in Colorado, where we were tasked with processing hundreds of cords of beetle-killed pine. The trees were large, averaging 18-24 inches in diameter, and we needed to work efficiently to meet our deadlines.

We initially started with standard chainsaw chains, but we quickly realized that they were struggling with the large diameter wood. The saws were bogging down, and we were spending a lot of time sharpening the chains.

We decided to switch to skip tooth chains, and the difference was immediately noticeable. The saws were able to maintain their RPMs, and we were cutting through the wood much faster. We also found that we didn’t have to sharpen the chains as often, which saved us a significant amount of time.

Here are some specific data points from the project:

Cutting Speed: Skip tooth chains increased our cutting speed by approximately 20%.
Chain Sharpening: We reduced the frequency of chain sharpening by about 30%.
Fuel Consumption: Fuel consumption decreased slightly due to the reduced strain on the saws.

The skip tooth chains allowed us to complete the project on time and within budget. We learned that they are an invaluable tool for processing large diameter wood, especially when working with softer species like pine.

Industry Standards and Regulations

The wood processing and firewood preparation industries are subject to various standards and regulations, including safety codes, environmental regulations, and quality standards. It’s important to be aware of these regulations and comply with them to ensure safe and sustainable operations.

Safety Standards

OSHA (Occupational Safety and Health Administration): OSHA sets safety standards for chainsaw operation and other aspects of the wood processing industry.
ANSI (American National Standards Institute): ANSI develops voluntary consensus standards for chainsaw safety and performance.

Environmental Regulations

EPA (Environmental Protection Agency): EPA regulates emissions from chainsaws and other small engines.
State and Local Regulations: Many states and local jurisdictions have their own environmental regulations related to wood processing and firewood production.

Quality Standards

National Firewood Standards: These standards specify the requirements for firewood, including moisture content, size, and species.
Sustainable Forestry Certification: Programs like the Forest Stewardship Council (FSC) certify wood products that come from sustainably managed forests.

Overcoming Global Challenges in Sourcing Materials and Tools

Sourcing quality materials and tools can be a challenge, especially in certain regions. Here are some common challenges and potential solutions:

Limited Availability

In some areas, certain types of chainsaw chains or safety gear may be difficult to find. Consider ordering online from reputable suppliers or exploring alternative brands.

High Costs

The cost of materials and tools can be a barrier for some hobbyists and small-scale operators. Look for discounts, buy in bulk, or consider purchasing used equipment in good condition.

Counterfeit Products

Be wary of counterfeit products, which may be of poor quality and unsafe to use. Purchase from authorized dealers and inspect products carefully before use.

Language Barriers

If you’re sourcing materials or tools from a foreign country, language barriers can be a challenge. Use translation tools or work with a local agent who can assist with communication.

Conclusion: Mastering the Skip Tooth Chainsaw Chain

The skip tooth chainsaw chain is a valuable tool for anyone who works with large diameter wood or wants to reduce the load on their chainsaw. By understanding its advantages and disadvantages, matching the chain to your saw, sharpening it properly, adjusting your cutting technique, and maintaining your equipment, you can maximize its performance and ensure safe, efficient cutting.

Remember, safety should always be your top priority. Wear appropriate safety gear, follow safe cutting practices, and be aware of your surroundings. With the right knowledge and skills, you can master the skip tooth chainsaw chain and take your wood processing and firewood preparation to the next level.