Helix set square 60 degrees
Take the stressful twist out of your measurements with this fantastic helix set square this bit of kit extends just a little over 28 centimetres and contains a diagram for referencefor geometric precision this set is an excellent piece of stationary for you or your kidsmaximum length is 28 cm approximately 11 inches60 degree anglemetricideal for technical drawinghelix set square 60 degrees