RoCookies help us deliver our services. Square definition, a rectangle having all four sides of equal length. Il observa qu'un surcroît d'énergie fournissait plus de vitesse sur le rail, alors que sur l'eau l'énergie requise pour augmenter la … A speed square or rafter angle square is a triangular-shaped tool which combines some of the most common functions of the combination square, try square, and framing square into one. Common lines made using it include perpendicular cut marks and The tool was invented in 1925 by Albert J. Swanson and readily earned its name in use. In this video, Tom Silva demonstrates how to use a speed square, ways to use it, and how to create your own speed square holder. Information and translations of speed square in the most comprehensive dictionary definitions resource on the web. These are more appropriately referred to as rafter angle squares or triangle-shaped measuring squares. https://makezine.com/2015/09/03/skill-builder-use-speed-square Ever wonder why every contractor you see has a triangular square …