Tool List - Combination Square

The combination square is a steel tool 12" long with a 4½" handle. The blade is either slotted or grooved. The blade and handle are fitted together to allow the cutting of 45° or 90° angles. It is useful for marking short measures and also has a spirit level built into the handle. In addition to making 45° and 90° angle cuts, the combination square can be used for measuring depths and scribing lines a given distance from the edge of a board. Special attachments are available but are not normally used by the carpenter. The most common of these are the centering head and the protractor head.