The new Milwaukee 4-1/2 in. Rafter Square is the everyday carry solution for all of your layout needs. Being 35% more compact, it can easily fit into pockets, pouches and tight workspaces. Laser-etched markings will not wear off, providing the assurance of trusted accuracy over the life of the square, while 1/4 in. and 3/8 in. heel spacing allows for quick marking of common cuts.