Which type of tool is try-square ?

Explanation:

• Try square is a precision instrument, which is used to check the squareness of a surface
• It consists of a stock and a blade
• Its size is specified by the length of its blade
• Its three main uses are
  • To check the surface for flatness
  • To determine if two surfaces are at right angles to each other i.e. 90°.
  • Try squares are made of hardened steel.
  • Try squares are specified according to the length of the blade i.e. 100 mm, 150 mm, and 200 mm
  • To lay outlines at right angles to a machined surface