T-square

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T-square

a T-shaped ruler used in mechanical drawing, consisting of a short crosspiece, which slides along the edge of the drawing board, and a long horizontal piece: used for drawing horizontal lines and to support set squares when drawing vertical and inclined lines

T-square, tee square

A guide used in mechanical and architectural drawing; consists of two arms joined together at right angles, like the letter T; the shorter arm slides along the edge of the drawing table or drawing board, which serves as a guide; the longer arm is used to draw parallel lines or to support triangles for drawing lines at different angles.
References in periodicals archive ?
I pre-cut each piece out of foam board, although older students could cut the foam board themselves using T-squares and X-Acto knives.
One thing you don't see around the shop floor here anymore is people running around with tape measures or T-squares to verify accuracy.
Accurate 90-degree edges offer precise reference for measuring and attaching T-squares. The brilliant illumination is created by the combination of daylight fluorescent lamps and a specially designed polyester pearlescent reflector system.
As I thought about projects inspired by the illuminations, I envisioned my class constructing designs with T-squares, triangles, French curves and compasses.
The students used scissors, rulers, T-squares, right triangles and glue sticks to mount their computer sheets to 60 lb.
Polaroid SX-70 camera for models or maquettes, opaque projector for enlarging letters, access to photocopy machine for making copies of sketches as well as limited enlarging and reducing capabilities, bristol board, X-acto knives, glue, T-squares and set-squares.