brands

attributes.Caliper_Type

attributes.Capacity

attributes.Imperial_or_Metric

attributes.Display_Type

attributes.Calibrated_service_type

attributes.Accuracy

attributes.Resolution

Mitutoyo 300mm, 12in Digital Caliper 0.01 mm Resolution, Imperial, Metric

Mitutoyo 200mm, 8in Digital Caliper 0.01 mm Resolution, Imperial, Metric

Mitutoyo 150mm, 6in Digital Caliper 0.01 mm Resolution, Imperial, Metric

Mitutoyo 130mm, 5in Vernier Caliper 0.02 mm Resolution, Imperial, Metric

Mitutoyo 280mm, 11in Vernier Caliper 0.02 mm Resolution, Imperial, Metric

Mitutoyo 200mm Digital Caliper 0.02 mm Resolution, Metric

Mitutoyo 180mm, 7in Vernier Caliper 0.02 mm Resolution, Imperial, Metric

Mitutoyo 150mm, 6in Dial Caliper 0.02 mm Resolution, Imperial, Metric


Calipers are high-precision measuring instruments used to determine the length, diameter, thickness, depth, and step measurements of objects. These versatile tools offer features such as digital displays and vernier scales, making them indispensable in physics labs, machine shops, and engineering applications. There are many styles of calipers, but the principle of measuring is the same. RS Singapore offers a wide selection of calipers to meet your diverse linear measurement needs.

Check out our [complete guide to calipers](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/calipers-guide) for everything you need to know about these measuring instruments.

## **What Are the Key Features of Measuring Calipers?**

Calipers have robust construction and are commonly made from stainless steel; however, specific applications may call for other materials like plastic or carbon fibre. Some feature anti-glare or satin finishes that enhance readability by reducing reflections. Some calipers can measure inside, outside, depth, or step dimensions individually, while others can measure all these dimensions simultaneously. 

### **Main Scale**

The main scale on a caliper is the primary graduated scale that provides the initial measurement reading. It is typically marked in millimetres or inches, or both; allowing flexibility in measurement units.

### **Vernier Scale**

The vernier scale is a secondary scale that provides finer measurements in conjunction with the main scale on the caliper. It allows for precise readings down to fractions of a millimetre or inch, enhancing the accuracy of the data.

### **Data Hold Function**

Some digital calipers feature a data hold function that allows the user to "freeze" the displayed measurement, even after the caliper is removed from the object. This is useful for taking measurements in awkward positions or when recording multiple measurements.

### **Metric and Imperial Units**

Many calipers offer the flexibility to display measurements in both metric (millimetres) and imperial (inches) units. This dual capability is particularly useful for professionals and hobbyists who work with both unit systems, ensuring compatibility with various projects and specifications.

## **Types of Calipers**

Calipers come in various types with different features to suit diverse applications:

### **Vernier Caliper**

Also known as vernier gauges, vernier calipers are particularly useful when you need to measure a round object. The fixed main scale is normally in tenths of an inch or millimetres while the moving vernier scale normally measures to the nearest 0.02 millimetres or 0.001 inches.

### **Digital Caliper**

Digital calipers use linear encoders to measure internal and external distances, which are then shown on a digital display. The easy-to-read measurements are available with metric and imperial conversions so you can accurately measure objects with ease. Digital vernier calipers combine the benefits of both digital and vernier calipers, offering high precision and ease of use.

### **Dial Caliper**

Dial calipers use a dial instead of two scales to read final measurements in fractions of an inch or millimetre. This dial-based readout offers similar accuracy levels as vernier calipers while providing an intuitive way to read measurements.

### **Spring Caliper**

Spring calipers are primarily used to measure the internal and external diameter of objects. They feature a spring-loaded mechanism that allows for adjustable tension and precise measurements. The tips of the calipers can be adjusted by turning a screw mechanism to accommodate different object sizes.

### **Inside Caliper**

Inside calipers are specifically designed to measure the internal dimensions of objects, such as the diameter of a hole or the width of a slot. They have outward-facing jaws that expand to make contact with the internal surfaces of the object being measured.

### **Outside Caliper**

Conversely, outside calipers are used to measure the external dimensions of objects. They have inward-facing jaws that close around the object to determine its diameter, width, or thickness.

### **Mechanical Caliper**

Mechanical calipers encompass a range of calipers that rely on manual adjustments and readings, including vernier, dial, and spring calipers. They provide a reliable and cost-effective solution for various measurement needs.

## **Industry Applications of Calipers**

Due to their versatility, calipers are used across a wide range of industries and functions, including manufacturing, building and construction, quality control, and more.

### **Mechanical Engineering**

In mechanical engineering, calipers are essential for precise measurements of components, ensuring accurate fits and tolerances during design and manufacturing processes. For example, calipers are used to measure the dimensions of shafts, bearings, and other critical components in machinery.

### **Automotive Industry**

The automotive industry relies on calipers for accurate measurements of engine components, body panels, and other parts during vehicle assembly and maintenance. For instance, calipers are used to measure brake disc thickness, ensuring they meet safety and performance specifications.

### **Aerospace Industry**

In the aerospace industry, calipers are critical for ensuring the precise dimensions of aircraft components, contributing to the safety and reliability of aircraft. Some of the components that rely on calipers include aircraft skins and engine parts.

### **Electronics Industry**

Precision measuring instruments are [crucial in the electronics manufacturing industry](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/precision-measuring-instruments-in-electronics-manufacturing-qa). Calipers are used to measure the dimensions of electronic components, circuit boards, and other small parts, ensuring they meet tight tolerances and fit correctly within electronic devices.

### **Carpentry**

Carpenters use calipers to measure the thickness of wood, the depth of cuts, and the dimensions of joints, ensuring accurate woodworking and precise fits.

### **Plumbing**

Plumbers utilise calipers to measure pipe diameters, fitting sizes, and other dimensions, ensuring proper installation and leak-free connections.

### **Electrical Work**

For electricians, calipers are a valuable tool for measuring the diameter of wires, the thickness of insulation, and the dimensions of electrical components. These accurate readings ensure proper connections and safe electrical installations.

### **Product Inspections**

As part of quality control, calipers are used to verify dimensions, check tolerances, and ensure that products meet specified requirements when they undergo inspection. For example, calipers can be used to measure the thickness of a plastic bottle to ensure it meets quality standards.

### **Verifying Measurements**

Calipers are also used to verify measurements taken with other tools or methods, providing an independent check to ensure accuracy and prevent errors. This corroboration is especially crucial when high precision is required.

## **Get Your Digital and Venier Calipers from RS Singapore**

RS Singapore is a trusted supplier and distributor of test and measurement tools, offering a wide range of high-quality products from reputable brands like [Mitutoyo](https://sg.rs-online.com/web/b/mitutoyo/), [Starrett](https://sg.rs-online.com/web/b/starrett/), and [Facom](https://sg.rs-online.com/web/b/facom/). Whether you need digital calipers, vernier calipers, or specialised calipers for specific applications, you’ll find the perfect tools for your needs on our online platform.

Additionally, RS Singapore also offers a comprehensive selection of other hardware and devices, such as [mechanical crimping tools](https://sg.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/) and [clamp meters](https://sg.rs-online.com/web/c/test-measurement/electrical-test-measurement/clamp-meters/), providing a one-stop shop for all your mechanical and electronic needs.

Receive your items at your convenience with our flexible delivery options, such as express and next-day deliveries. To learn more about delivery fees and estimated delivery times, please visit our [delivery information page](https://sg.rs-online.com/web/content/support/all-articles/delivery).



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