carpentry: measuring and marking tools [3]

bevel square

Instrument whose movable arms are used for measuring or for marking an angle.

framing square

Instrument, usually graduated, used for marking right angles and to check that joints and cuts are perpendicular.

spirit level

Instrument fitted with tubes containing a liquid and an air bubble that, when placed between two points of reference, shows whether a surface is level, vertical or at 45°.