Scaling not very accurate

The angle makes the material her a good impression and is very stable.
The lettering is a bit pale and therefore not good to read, depending on the lighting.
The 90 ° angle is strictly adhered to, the 45 ° stop, I have not checked.

The reason for the three star but is the inner length of the scale. This starts with my two angles (I had the 150mm and 300mm angle to buy) is not exactly on the leg at special little early. Therefore, the inner scale shows on both sides of the angle is always about 0,3-0,5mm to too much. Although no accuracy class is indicated on the angle, so a large deviation should not happen.
I'm afraid it is not an isolated case because besides my two angles in another review of 300mm angle the same error is described.