In this article, we will explore the factors that determine whether a saw can accommodate a dado blade set and what you should consider when choosing one.
Understanding Dado Blade Sets
Before discussing the compatibility of dado blade sets with different saw sizes, it is important to understand what a dado blade set is. A dado blade set consists of two circular saw blades and a series of chipper blades that are stacked together on a saw’s arbor. This arrangement allows the blades to cut a wider groove, known as a dado, compared to a regular saw blade. The use of a dado blade set ensures that the resulting groove is clean, accurate, and easy to fit with another piece of wood.
Factors Affecting Compatibility
- Arbor Size and Length: The arbor of a saw is the shaft on which the blades are mounted. The first factor to consider is whether the saw you have or plan to purchase has an arbor of the appropriate size and length to accommodate a dado blade set. Most dado blade sets require an arbor size of at least 5/8 inches (15.9 mm) and a length capable of supporting the stacked blades securely.
- Saw Power: Dado blade sets are available in various sizes to cater to different cutting requirements. Ideally, a more powerful saw will be better suited for using a dado blade set, as it can handle the increased load and maintain cutting efficiency. However, even lower-powered saws can accommodate dado blade sets, as long as you choose a set suitable for the saw’s capabilities.
- Radial Clearance: Radial clearance refers to the space available on the arbor to hold the dado blade set securely. Some saws have limited radial clearance, making it impossible to stack multiple blades and the necessary chipper blades. It is crucial to measure the radial clearance of your saw’s arbor before purchasing a dado blade set.
Choosing the Right Saw
Now that we have discussed the factors affecting compatibility, let’s look at the different types of saws and their potential to accommodate dado blade sets.
- Table Saws: Table saws are the most popular choice for using dado blade sets. They usually have larger arbors, ensuring adequate radial clearance. Many table saws are designed explicitly for dado blade sets, providing specialized features such as dado blade inserts and adjustable dado blade capacity.
- Radial Arm Saws: While radial arm saws can accommodate dado blade sets, they may require some modifications or additional accessories to ensure a safe and secure fit. Consult the manufacturer’s guidelines or a professional before attempting to use dado blade sets on a radial arm saw.
- Portable and Circular Saws: Portable saws and circular saws are commonly used for general woodworking tasks but may not be ideal for using dado blade sets. These saws typically have smaller arbors and limited radial clearance, making it challenging to stack dado blades securely. If you need to make dado cuts with a portable or circular saw, alternative methods such as multiple passes with a regular saw blade or using a router may be more suitable.
Whether a saw can accommodate a dado blade set depends on several factors, including arbor size and length, saw power, and radial clearance. Table saws are generally the best choice for using dado blade sets due to their larger arbors and specialized features. Radial arm saws may require modifications, while portable and circular saws may not be suitable unless alternative methods are used. Always consult the manufacturer’s guidelines and consider professional advice before attempting to use a dado blade set on a specific saw.