How hard can following a line with a circular saw be? It turns out that without a lot of practice, it can be a lot harder than the pros make it look. Hell, you even see pros using their speed square as a fence. There’s one problem with this method, though: Because of the width of the saw base, the cut line and where the square goes are two different places. So you play the game of trying to line up the blade with the cut line and the square with the fence all while holding the board, square, and saw.
Kreg has come up with a simple solution, the kind that’ll make you slap your forehead (like I did) and wonder why you didn’t think of it. They add a small arm to their Square-Cut that you set to the width of your saw’s base. Then you just line up the end of the arm with the cut line and the square is in perfect position to act as a fence for the saw.
The Square-Cut works with any circular or jig saw and can be easily changed to fit a different saw base. Kreg claims the “low-profile” design means it won’t get in the way of the saw motor while cutting — ever clamp a fence to a board or sheet only to get stopped by the motor hitting the clamp? It also has rubber feet on the bottom to prevent it from sliding around if you have a less-than-perfect grip.
The Square-Cut retails for $17.