Combination sets are useful for all types of mechanical jobs.
The set is comprised of a straight rule protractor, a square head, and a center head.
The protractor is graduated to read from zero to 180o in both directions.
The rule is made of stainless steel and is graduated in both 0.5 mm and 1 mm increments.
The square head has a level and a scriber point.
The protractor head, center head, and square head are all made of cast iron.