It is actually named a T-square for your purpose. The sq.’s scale has to be affixed into the T-head specifically perpendicularly. You could’t draw parallel and perpendicular traces properly till the leading scale and also the T-head are at correct angles. I have two AR builds. One Gwn2 and a https://52-inch-ceiling-fan57530.bloggerswise.com/40221582/rumored-buzz-on-welding-fixture