Vernier Calipers
Vernier, Dial, and Electronic Calipers give a direct reading of the distance measured with high accuracy and precision. They are functionally identical, with different ways of reading the result. These calipers comprise a calibrated scale with a fixed jaw, and another jaw, with a pointer, that slides along the scale. The distance between the jaws is then read in different ways for the three types.
Fine Adjustment, Range: 6-12"
Heavy Duty, Range: 12-120"
Locking Screw, Range: 6-12"
Thumb Lock, Range: 6"