Made of high quality carbon steel, good toughness, high hardness, sturdy and durable, wear-resistant, not easy to rust and corrode, accurate measurement
Heavy duty & good construction, a great tool for doing large carpentry work, scribe, drafting, metal work, and leather work
Lockable wing provide quickly measure, copy measurement, repeat measurement, measurement transfer and repeated circle drawing
The tips are hard and sharp, they can clearly & easily draw lines on the surface of metal, plastic, wood and other workpieces
The leg is 6 inches long, the maximum span (radius) is 8.0 inches, and maximum drawing circle diameter 16 inches
