Set Square 30cm pack of 2 45+60 degrees
Essential for drafting and planning - Set if 2 angles 45 and 60 degrees - clear plastic, 30 cm long
The 45 degree set square also has a 90 degree angle. This can be used for drawing vertical lines.
The 30/60 degree set square also has a 90 degree angle. This set square can be used to draw 30, 60 or 90 degrees angles.
Set squares are only accurate if they are used along with a T-square. The set square must rest on the T-square which should be pushed against the edge of the board. If the T-square is not right against the edge of the board (if there are even small gaps) lines drawn at an angle will not be accurate.