Angle standard 90°-triangle no. 136


For measuring of 90° angle


Manufactured in black hard rock; two small surfaces lapped rectangular to each other, remaining sides polished; angle accuracy relates to the longest side; provided with through-holes to reduce weight and for easier handling; from size 500 x 300 mm with 3 threaded inserts in surface for horizontal transport

Special Constructions

  • other dimensions
  • other accuracies


Wooden case