The Mitutoyo 532-120 vernier caliper performs precise measurements to within 0.03 mm, for applications where high accuracy is required, especially in scientific research and in industries where parts must fit exactly. This caliper takes inner diameter (ID), outer diameter (OD), depth, and step readings. It has a fine adjustment carriage to precisely control the sliding scale’s movement. To improve visibility and readability and avoid parallax errors, the caliper has a modest face angle on the vernier scale.

The Mitutoyo 532-120 has a dual vernier scale, with an Upper Scale measuring in inches and a Lower Scale measuring in millimeters. The vernier graduation of the Upper Scale is 0.001"; the vernier reading of the Lower Scale is 0.02 mm. The scales are raised to slide easily and protect the graduation markings. A fine adjustment carriage feeds the slider to allow precise movement of the vernier scale. A modest vernier face angle allows easy reading. The caliper is made of hardened stainless steel construction with a satin chrome finish. With its fixed and movable jaws, it has four-way measurement capability: outer diameter (OD), inner diameter (ID), depth, and step, where the butt end of the fixed jaw measures one end of a work piece before its upper/lower or inner/outer "steps" are measured. It has a Main Slide length of 11.34", a Vernier Scale Length of 3.00", a combined scale width of 1.23", a Lower Jaw Length of 1.97", an Upper Jaw Depth of 0.81", a combined Upper/Lower Jaw Length of 3.58", and a Depth Measuring Blade Length of 0.63". Range is 0” - 7"/0 - 180 mm, resolution is 0.001"/0.02 mm, and accuracy is rated at + or - 0.03 mm, which meets Federal Accuracy Specifications GGG-C-111B.

Calipers measure the distance between two opposing sides of an object. They make inside, outside, depth, or step measurements, according to their type. Calipers are commonly used in architecture, metalworking, mechanical engineering, machining, manufacturing, carpentry, and medicine. The simplest calipers have two legs to mark the two points and require a ruler to take the measurement. More complex calipers use two sets of jaws instead of legs and have up to two graduated scales. Vernier, dial, and digital calipers all give direct and accurate readings and are functionally identical, having a calibrated scale with a fixed jaw, and another jaw with a movable pointer that slides along the scale. The vernier caliper has a scale sliding parallel to the main scale for an additional, fractional reading to improve measurement precision. The dial caliper has a circular dial with a pointer on a toothed gear rack replacing the second vernier scale. As with the vernier, this second measurement is added to the reading from the main scale to obtain the result. The dial caliper is used for measuring size differential between two objects, as well. The digital caliper takes the same sort of differential measurements as the dial caliper by zeroing the display at any point along the slide, with an LCD (replacing the dial) that displays a single, easily read value in both English and metric units. Some digital calipers can hold data readings between measurements and send them to data collection devices.

Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL.

What’s in the Box?

• Mitutoyo 532-120 vernier caliper
• A vinyl holster in a fitted carton