C.H. Hanson introduces a compact, new multifunction layout tool made of tough polystyrene that'll make a nice addition to your tool pouch. In addition to its use as a pocket square and angle finder for marking layout on framing, the Slide Square also includes a novel sliding anchor-bolt layout function for transferring bolt locations onto sills for accurate drilling. The sliding feature also works as a caliper for gauging thickness and diameters. Price: $9. 800-827-5834.