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Circular Saw 101: How to Use the Sightlines

Pro tips on using the notches in the shoe to sight a cut

In the fourth Circular Saw 101 video, This Old House contributor Mark Clement demonstrates how to properly operate the shoe of the circular saw. Some saws contain notches on the shoe that can help you align the saw with the correct cutline for cutting at 90 degrees or at unique angles.

Learn how to:

• Utilize the notch feature on the saw

• Set for bevel or 90-degree-angle cuts

• Properly align the saw with the cutline