The color coded center groove easily identifies scale graduations. Measurements are precision-etched into a durable laminated plastic for accuracy. Comes in a protective case. Color coded, 10
20
30
40
50
60 parts per inch. Ruler Type: Triangular Scale
Length: 12"
Standard Scale: 10"
20"
30"
40"
50"
60"
Material(s): Plastic.
Unit of Measure : Each
20
30
40
50
60 parts per inch. Ruler Type: Triangular Scale
Length: 12"
Standard Scale: 10"
20"
30"
40"
50"
60"
Material(s): Plastic.
Unit of Measure : Each