Although this ruler can function by itself as a traditional ruler, it has some extra capabilities. Specially designed holes on the ruler allow it to be rotated around a center pin, allowing you to use it as a compass and when used in conjunction with the degree scale tools from circle perfect tools, you can quickly rotate, mark and draw straight lines at measured angles (i.e. Goniometer).
L**D
Excellent quality
Product worked great but it was bought for school and was larger than a normal ruler. This is more for professionals that a kid of course that is probably why it was pricey
Y**X
A must have add on.
A must have add on for the Circle perfect scale compass.
Trustpilot
1 month ago
1 week ago
