ALVIN Adjustable Drafting Triangle, Tru-Angle, 10 in, 0-90 Degrees, 110CB

If you want to buy a decades long manufacturer's product (even if it may no longer be made in the U.S.A.), go with Alvin!

I loved that this adjustable triangle came with a case for storage and protection. It’s easy to use and I prefer it more to the other brands as the edging is perfect for lines.

Cannot live without this very well-made triangle.

The item was top quality, well packaged and made to last.

My old one broke. When I corrected the breakage it never worked well after. So. I bought this one and it works as well as the old one.

I have been using adjustable triangles for over 40 years, and this is the first time I have had one that quit working. The screw adjuster was defective after four months.It loosens up and won’t hold the triangle in position. You can tighten it, but it loosens up almost immediately. (My adjustable triangles typically last over 10 years until I break them by accident by stepping on them or something :-). Some of those have been by Alvin also, so maybe just a bad batch?)

I use it on my drafting board and also for my machine setup

I’ve struggle with this triangle all semester. My 90 degree lines were never true 90, one side is always at least 1 degrees wrong so you can only use 1 side of it. Wish I have tested it before. I just drew a line then another line right on top of it with the other side and it is not on top of the other line all the way, it sways to the left as you draw and creates a 2mm gap on top when you draw one foot. I know I am out of the return window but seller should replace this.