Understanding Handsaw Sharpening

Handsaw Sharpening: Is It Worth It? A Woodworker’s Guide

While power tools have revolutionized woodworking, handsaws remain essential in any workshop. Whether you’re a beginner or a seasoned woodworker, you likely have at least one. A common question arises: is it worth the effort to learn how to sharpen a handsaw? The short answer is: probably not for most.

The Case Against Sharpening Handsaws in the Modern Workshop

A few highly skilled woodworking masters still sharpen their handsaws, but they’re the exception. For most woodworkers, particularly beginners and those at an intermediate level, the time and effort invested in sharpening a handsaw can be better spent elsewhere. Let’s delve into why.

Hard-Point Handsaws: The Modern Convenience

Many contemporary handsaws eliminate the need for sharpening altogether. These saws are designed to be replaced when dull, thanks to advancements in manufacturing and materials. The teeth of these saws are incredibly sharp right from the factory, and they are constructed from hardened steel that is too tough for standard files used for traditional sharpening. This hardness ensures the teeth retain their sharpness for a considerable time. These saws are often referred to as “hard-point saws.”

Not all hard-point saws perform equally well. A handsaw that has consistently impressed for its speed and accuracy is this Irwin handsaw. It’s exceptionally efficient at crosscutting and can even manage rip cuts in a pinch.

Sharpening Handsaws: A Specialized Skill and Investment

Woodworking expertise is often synonymous with keeping cutting tools razor-sharp. Proper sharpening, in the case of tools like chisels, gouges, and planes, is a necessary skill. However, the same doesn’t always apply to handsaws. This sharpening process demands significant time, skill, practice, and specialized equipment.

Prior to the widespread use of hard-point saws, woodworkers frequently sent their saws to specialists who possessed the specific guides and files needed to sharpen each individual tooth. Those who attempted to sharpen their saws faced a potentially tedious and time-consuming task.

The Short Lifespan of a Hand-Sharpened Edge

Even if you invest the time and money to master handsaw sharpening, the edge you achieve won’t last as long as a hard-point saw. The steel in sharpenable handsaws is designed to be ground down, making it inherently softer than the hardened steel of hard-point saws. Tests have shown that a hand-sharpened saw may cut significantly less wood before becoming dull compared to a hard-point saw.

How to Care for Your Handsaw: Maximizing Lifespan and Performance

Regardless of whether you use a modern hard-point saw or an older, sharpenable model, proper care is crucial for longevity and optimal performance. Here’s how to keep your handsaw in top condition:

  • Storage: Store your handsaw in a safe, dry place to prevent rust.
  • Proximity to Metal: Avoid storing your saw with the teeth near other metal tools, as this can dull the teeth.
  • Blade Protection: Always use a handsaw blade guard over the teeth before putting it away. This protects the teeth from damage and helps maintain their sharpness.

When Sharpening Your Handsaw Might Make Sense

While hard-point saws offer convenience, there are situations where sharpening your saw might still be a worthwhile skill. Skilled woodworkers sometimes prefer to sharpen their non-hard-point saws for specific reasons:

Embracing the Traditional Woodworking Ethos

For woodworkers who aspire to a purist approach, minimizing or eliminating electricity in their workshop, handsaw sharpening allows you to embrace the challenge and the satisfaction of working entirely with hand tools. Sharpening your own rip cut handsaws can provide better results than hard-point general-purpose saws.

Working Without a Table Saw or Circular Saw

Many modern woodworkers rely on table saws or circular saws for rip cutting. These power tools offer speed and precision advantages over handsaws. However, table saws can be expensive and space-consuming, while circular saws offer a more budget-friendly alternative.

Making perfectly straight cuts with a circular saw requires practice and skill, especially without a guiding straightedge. The slower, more controlled nature of handsaw cuts can be less intimidating for beginners. If you choose to forgo power tools for rip cutting, learning to sharpen your rip cut handsaw becomes a valuable skill.

How to Sharpen a Handsaw: A Detailed Guide

If you’re determined to sharpen your traditional handsaws, remember that saw sharpening techniques vary widely. These differences depend on factors such as:

  • The shape and size of the saw’s teeth.
  • The teeth per inch (TPI) of your saw.
  • Whether the saw is designed for crosscutting, rip cutting, or both.

Be aware that mastering handsaw sharpening takes practice. Before you begin, gather the necessary tools.

Essential Tools for Handsaw Sharpening

  • Saw Set Tool: A plier-like tool used to bend each saw tooth outward slightly, setting the teeth.
  • Saw Files: Triangular files designed to sharpen the teeth.
  • Handsaw Clamps: These clamps hold the saw blade securely during the sharpening process.
  • Benchtop Vice: Used to secure the saw clamps.

Steps for Sharpening a Handsaw

1. Clamping the Handsaw

Choose a handsaw clamp that is long enough to hold the entire blade. Secure the saw clamp to your workbench using a benchtop vice. Place the saw upside down in the clamp, ensuring the teeth are protruding from the top, with only a small portion of the blade visible.

2. Setting the Saw Teeth

Handsaw teeth must be bent outward at a specific angle to function correctly. This ensures the kerf (the width of the cut) is slightly wider than the blade, preventing the saw from binding in the wood. With use, saw teeth can bend inward. The first step, therefore, is to reset the teeth using a saw setting tool. Adjust the tool to match your saw’s TPI, and then set each tooth individually.

3. Selecting the Right File

Whether you’re sharpening a rip cut or crosscut handsaw, select a saw file with a shape that matches the tooth profile. The side thickness of the file should be at least twice the height of your saw’s teeth to ensure even wear.

4. Leveling the Teeth

Gently pass the file over the tips of the teeth once or twice, maintaining a perfectly level position. This will level each tooth, ensuring the newly sharpened points are all in the same plane. The tiny flat spot created by the file will be a visual reference for not grinding away too much metal.

5. Filing Each Tooth

Starting with the tooth closest to the handle, hold the saw file with both hands and use short, controlled strokes. The number of strokes per tooth will vary depending on the saw’s dullness. Sharp saws may only require one or two strokes. If your saw is very dull, you may need more.

Sharpen each tooth sequentially, one at a time. Maintain consistent pressure and angle throughout each file stroke.