Spring-loaded sled adjust button allows the jig to be set to do repairs of any nature around your home or your shop Built-in imperial & metric scales allow you to easily measure the thickness of your workpiece There are four common board thickness settings built into the pocket jig: 1/2", 3/4", 1" & 1-1/2" Recessed clamp pocket with magnet helps to keep the clamp in the same position as you move to different locations Easily adjust to your board thickness setting with the single sled design and sled adjust button