What is a dado blade?

A dado blade is a specialized type of circular saw blade used in woodworking to cut dados or grooves, and rabbets. Unlike a standard saw blade that makes a single narrow cut, a dado blade is designed to remove a wider swath of material in a single pass.

• Construction: A dado blade set consists of two outer blades (the "outside blades") and a series of chippers that fit between them. The outside blades score the edges of the cut, while the chippers remove the waste material in between. The width of the cut is adjustable by adding or removing chippers and shims.

• Types: There are primarily two types of dado blades:

  • Stacked Dado Blades: These are the most common type. They use a set of blades and chippers to achieve the desired width. These are generally more affordable and versatile.
  • Wobble Dado Blades: These blades use a single blade that is mounted at an angle on the arbor. By adjusting the angle, the width of the cut can be varied. While less expensive initially, they are known for producing a rougher cut and are generally not recommended for precision work.

• Uses: Dado blades are used to create grooves for joinery, such as fitting shelves into cabinets or creating strong joints for drawers. They are also used for creating rabbets for cabinet backs or drawer bottoms.

• Safety: Using a dado blade requires caution. Always follow the manufacturer's instructions for installation and use. Ensure that the blade is properly installed and secured. Use appropriate safety equipment, including eye and ear protection. Always feed the wood slowly and deliberately to avoid kickback. Verify your table saw's compatibility before using a dado blade.

• Blade Size: Dado blades come in various sizes, typically 6" or 8" in diameter. The size to choose depends on the power of your saw and the maximum cutting depth required for your projects.

• Applications:

  • Cabinet Making: For creating strong joints and fitting shelves.
  • Furniture Building: For constructing drawers and other components.
  • General Woodworking: For creating decorative grooves or channels.