21cm 45 Degrees Professional Metric Aluminium Aluminum Metal Set Square Triangle

Looks just like the picture. Used with a T-square you can draw a line parallel to an edge. (Or use a Mortise Gauge to scratch in a line). Ships from England. Much thicker than similar triangles I have.

Checked these by using the grade 0 and Starrett combination square and they are accurate. Looking forward to using these in my future layouts for templates.

good product

Just the job!. I use it for cutting card and wads of paper where I need accurate right angles. I was fed up cutting slivers of plastic off my set-square and worrying if my Stanley knife was going to slip and cut me. This is a strong and accurate metal piece of engineering that is a pleasure to use and I am sure it will last a long time.

Unlike the other reviewers I was not happy with using this set square and eventually I threw it away and bought another one. Reason being that the numbers do not go right up to the corner, so using it to mark out has to be a two step process. First - draw a line to fix the right angle, then second - move the set square to measure along the line.It drove me bananas. If you don't care about doing twice as many adjustments as necessary then it is a fine set square. Accurate, clearly marked, robust. Just designed by someone who never uses a set square

Good size...well calibrated.....used for making handmade books Just fine

does the job