Alvin 14 inches Cutting Edge Triangle 30/60 ACT360-14

This triangle is amazing. It has the three attributes I need: (1) clear, unbending, durable acrylic (2) an edge that is flush with the paper, tapering to a fine edge (rather than a thick one that is hard to see where your line will end up going), (3) is long enough to go across the entire paper size that I use. I also appreciate the fact that it has an imprinted grid and rulers. This is extremely well made and fixes all of the complaints I had about the others I've purchased in the past from other brands. Do yourself a favor and spend the money - it's totally worth it, and you won't need another (unless you want a smaller one just like it!) I wouldn't mind having an even larger one for larger papers, but I can't find any.

Large and very sharp edges.

Used this to sketch a project recently, and it was better than I had hoped it would be. My old 45deg triangle has much lighter markings making it more difficult to line up. The dark markings make it much easier to see them against pencil lines. It is just as sturdy as I expected it would be. The rubber pads to keep it in place on the sheet take a little getting used to, and they have pros and cons, but it's still a great triangle.

I have written a review critical of the packaging that allowed the triangle to come broken. But, to their credit, I have a new perfect one after just 3 days.

Made me a better woodworker. All of my cuts are better and tools calibrated to much tighter tolerances.

I have no idea why this triangle got such stellar reviews. Those were written by folks who have never used the triangle and do not do any drafting or drawing requiring a 60/30/90 triangle.The triangle material and finish are great. That said it is a dysfunctional device. Look at a photo of the triangle. See the numbers on two sides. Those are the only usable sides due to the beveling of those edges. The bottom unnumbered edge has a strange almost shiplap edge cut.Unlike a normal triangle you cannot rotate or flip the triangle over and draw on any edge. The triangle is limited to drawing a 30 degree left side angle and a vertical. In no other position can a line be accurately drawn. The beveled sides cannot be reliably positioned against a T-square or parallel bar. The beveled edge slips under whatever it is resting on.A normal triangle can be used to make 5 lines. This triangle can only reliably be used to make two and one of those is a vertical. Basically for the angles normally used excluding the vertical Only one of four work.The triangle although esthetically appealing and nicely made is useless to an architect or draftsman. Take the over priced triangle money and buy a normal triangle. Be careful. Most plastic triangles are molded China junk.

Grids with measurements on the triangle make this the best one I've ever owned. The large size is a great tool for drawing my own building plans. The metal edge guides an Exacto razor blade in a straight line for old-fashioned cut and paste use. Match this up with the 45 Degree triangle for efficient drawing. The thick plastic makes it hard to use with other brands of thinner triangles. Probably the best quality triangles one can buy.

Beautiful! It even has a material on the bottom that prevents it from sliding

Good quality