Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
It is made from metal. Therefore it can be used to cut things with a paper knife without damaging the ruler.
The angle scale (degrees) is not accurate. The 90 degree position is about 1 deg off. Therefore the angle measurement can't be trusted. This seems to be caused by bad alignment of parts. The holes are not in the right positions.
Other problem is the set screw. The threaded part that is supposed to be fixed on the half circle shaped part is loose so it just rotates with the nut.
The scale on the ruler part seems to start from the wrong end and doesn't go all the way to the other end. It might be more logical if the scale started from the other end.
The mechanical problems make this pretty much useless. It can't be tightened and it is not accurate. Only working part is the 10 cm (4 in) ruler.
The shape and size would make it perfect to use when cutting for example something out of cardboard etc. If it worked, that is.
It is a bit pricy as is and with the build quality it is not worth buying (even if the price was lower).
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