SPI Plastic Dial Caliper Model 30-412-1

Measuring range is 6”/150 mm. The English dial is graduated to the nearest 0.001”, and the ruler scale is graduated out to 150 mm. Accuracy to ±0.0015”/0.04 mm. Measures inside, outside, step, and depth measurements. Top scale in mm, bottom scale in inches. One revolution of the dial equals 0.1”. Drill and tap chart on backface. Made of durable Cycolac plastic. Protective case included. Swiss made.