Satin chrome blades and protractor heads
Direct reading 0-180° in opposite directions, permitting the direct reading of angles and supplementary angles
Reversible lock bolt allows choice of which graduated side of the blade faces the operator
Protractor heads are made of stable cast iron and finished with a smooth black finish or wrinkle finish
Tempered steel blades with accurate, machine-divided graduations
Reversible; shoulder on both sides of blade allows tool to be reversed so same angle can be scribed or measured left and right
Spirit level indicates when the base reference surface is level
Meets or exceeds accuracy and performance requirements of national and international standards and are traceable to the National Institute of Standards and Technology.