KENNEDY : เครื่องมือวัดละเอียด
Can be used independently as a "quick check" tool or to convert a rule or square into a precision angle finder. High strength built-in ceramic magnet with vee groove for use on bars and pipes. Accuracy /-0.5%. For the most accurate readings it is recommended that the angle finder is attached to a steel rule or square by means of the magnet or screws.