The set square is in the shape of a right-angled triangle.
Our blue plex items have a bevelled edge and two stepped edges. Draftsmen tend to draw at right angles with rotring pens to prevent smudging, therefore we have stepped edges for this purpose. The bevelled edge has measurements for enabling accurate markings.
Our aluminium set squares have a marked side which is bevelled and the other sides are square cut. The edge is cut to prevent peeling. The aluminium can also be used with scalpels. Both versions of set square can be purchased individually or in a set.
We also have wooden set squares for a traditional feel; again these items have a bevelled edge with the other sides being square cut, ensuring all the usability remains whilst incorporating luxurious timber.
Set squares can be utilised for drawing both parallel and perpendicular lines and are commonly used for technical drawing and engineering purposes.
Set squares are typically used in conjunction with T-Squares or parallel motions to ensure accuracy. The T-Square is placed firmly along the edge of your drawing board, there should be no gaps. Then position your set square on top of the T-square. Paper can be secured in place using drawing board clips.
If you require a range of angles to be drawn, it is worth considering purchasing an adjustable set square. The angles produced can be up to a maximum of 180°.
Set Square Sizes
The convention for sizing a set square is to measure the length of the long side (the hypotenuse) on the 45°set square. This means a 32cm set square will have a 21cm short side and a 32cm hypotenuse.
Manufacturing restrictions may shorten the 32cm length slightly as the point may be removed, either for safety or because in the case of an applied scale because it is impossible to adhere securely to a point.
The 32cm 60° set square is produced to be compatible to the size of the 45° but does not have a 32cm length at all.
We offer many more including our long life collection; extra-large set squares and 2 way set squares. To navigate our ranges of set squares click here
Freya Knudsen – Email: Sales@artdo.co.uk