Keep it Accurate! Why Precision Measurement Tools Help Keep Automobiles Perform Efficiently

mechanic using caliper to measure car partsCars have become precision machines that rely on each part working seamlessly with one another to deliver not only an efficient but a safe performance. This is crucial in ensuring that these people movers don’t become road hazards. For this reason, any variation, however minute, on a car part’s performance needs to be checked with precision measurement tools.

To make sure that these tools are accurate down to the ten-thousandths of an inch, they need to undergo regular instrument calibration services offered at in Chicago. Automotive repair shops that make use of these precision tools have a great advantage over the competition as they can be relied upon to do engine repairs most accurately, avoiding even the slightest errors in measurement that can compromise the durability and performance a car’s engine and its other systems.

Any automotive repair owner or one who is planning to get into the business, and those who manufacture products that need to meet very specific tolerances, should, therefore, have these precision measuring instruments at their disposal:

Machinist’s Rule

It’s no different from an ordinary ruler, except that its edge is divided into increments based on a different scale such as the Imperial system that uses 1/8-, 1/32-, and 1/65-inch intervals. There are also metric rules that have 0.5 mm and 1 mm increments, while other types use decimal intervals and are divided into 1/10-, 1/50-. And 1/1,000-inch increments.

Vernier Caliper

Used to measure the inside, outside, or depth of an object, a Vernier caliper is made up of two scales, with one that is fixed and the other movable. The stationary scale is divided into inches (usually until 6 inches) that in turn has 10 divisions; each one equals to 0.100 inches. The moving scale, on the other hand, has 25 divisions, with each one equaling 0.001 inches. From these figures alone, you can be sure that the Vernier caliper is used to get a most precise measurement.

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Dial Caliper

Used for measuring dimensions from 0 to 6 inches, the dial caliper is a simpler version of the Vernier caliper, but no less accurate.


This is used to measure linear outside and inside dimensions. Like the Vernier caliper, it can measure objects to up to 0.001-inch accuracy. Digital versions are now available, which makes it easier to find the measurement of the object. Micrometers are a sensitive instrument that needs to properly handled and cared for to keep them functioning accurately.

Telescoping Gauge

Also called a snap gauge, the tool is used to measure bore diameters and other clearances, and are available in different sizes from a fraction of an inch up to 6 inches. It works in tandem with an outside micrometer.

Small Hole Gauge

It functions similarly to a telescoping gauge but is used mostly on small bores where it is placed and expanded. It is then removed and measured with a micrometer.

These are but some of the most important precision measuring tools that any company that values exact measurement highly should always have. And, as mentioned, they need to regularly calibrated to keep their accuracy.