ALVINA1500-15, Folding Parallel Rule - 15 Inch Drafting Ruler for Precision Measurements and Accuracy in Architectural and Engineering Designs

Nicely made and quality. Great for charting route when sailing. Nice size to fit on nav table. Slides easily and holds position.

I use for marking and cutting parallel edges to folding knife handles. It enables precise fitment of the scales between the bolsters. It is sturdy and clean, and it’s transparency allowed easy and precise placement of the cut lines.

Received in a timely fashion and works fine.

Use this for drawing in perspective and ensuring that parallel lines in the drawing are, in fact, parallel. Sometimes faster this way than a t-square and not nearly as cumbersome in small places.

Was looking for a simple tool to help me align my penmanship when addressing envelopes. This was exactly what I was looking for!

The cork pieces on the bottom catch on paper, and they can tear the pages if you aren't careful. Otherwise, 10/10

I used this device to get the right angles when building my barn roof. It worked perfect.

It's a tool, the proper criteria is; does it perform its intended function? This tool has every prospect of fulfilling the functions it's designed for.

Needed for precision marine navigation (non-GPS). I like these better than my older (and exponentially more expensive) ones which are opaque. A little thinner, but seem to do the job precisely.

Great product