No more eye-balling your saw blade to the pencil mark on your wood. Kreg gives you an easier and more accurate way to cut wood to length with its Square-Cut (KMA2600). It enables you to accurately align the saw blade to your pencil mark when cutting wood, giving you perfect 90-degree cuts every time. The adjustable arm guide requires no trimming and it compensates for the length of the blade to the edge of your base plate, plus it can be set to match any circular saw or jig saw. You can even switch back and forth between any circular saw or jig saw. It has rubber feet to ensure secure control and its low-profile design won't interfere with the saw. The built-in roof pitch scale is perfect for cutting siding, and it supports work pieces up to 12" wide.