page_title: Combination square
hierarchical_section_title: Combination square
caption_attribution_description: Combination square set, consisting of ruler, 45 deg square (left), protractor (middle), center square (right) Español: Componentes de un goniómetro
context_page_description: A combination square is a tool that serves several purposes in woodworking, stonemasonry, and metalworking. It is composed of a ruler and one or more interchangeable heads that may be affixed to it. The most common head is the standard or square head, which is used to lay out or check right and 45° angles.
  Invented in 1877 by Laroy S. Starrett, the combination square is a common tool in home workshops, construction jobsites, and metalworking.
context_section_description: A combination square is a tool that serves several purposes in woodworking, stonemasonry, and metalworking. It is composed of a ruler and one or more interchangeable heads that may be affixed to it. The most common head is the standard or square head, which is used to lay out or check right and 45° angles. 
  Invented in 1877 by Laroy S. Starrett, the combination square is a common tool in home workshops, construction jobsites, and metalworking.
caption: A combination square consisting of the rule, 45° holder, protractor and center square
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