Angle standard 90°-rectangle: angle plate no. 140


For controlling of 90° angle in vertical position with „turn-back“; suitable for alignment work through parallel machining of functional surfaces.


Manufactured in black hard rock; four narrow surfaces lapped parallel und rectangular; angle accuracy relates to the longest side; both surfaces polished; provided with through-holes to reduce weight and for easier handling, from size 400 x 400 mm with 2 threaded inserts in the sides for horizontal transport

Special Constructions

  • other dimensions
  • other accuracies