Calipers

Calipers also known as callipers are measuring instruments with a high degree of accuracy and little margin for error when measuring length or distances. They are mostly found in physics labs, machine shops and engineering applications. There are many styles but the principle of measuring are the same, we offer a large selection of calipers to meet your linear measurement needs.
What are the key features?
Calipers have a robust construction, most commonly made from stainless steel. Some feature anti-glare, or satin finish that makes measurements easier to read. Some calipers will only allow for measurement of the inside or outside, depth or step of a product. However, many do give the option of measuring all of these. Calipers can display measurements in both imperial and metric.

Types of Caliper
• Vernier caliper
• Digital vernier caliper
• Dial caliper
• Digital caliper
• Spring caliper
Vernier Caliper
These are particularly useful when you need to measure something round. They feature a fixed main scale and a moving vernier scale. The main scale is normally in tenths of an inch or millimetres while the vernier scale normally measures to the nearest 0.02 millimetres or 0.001 inches.
Dial Caliper
These provide measurements with the same level of accuracy as Vernier calipers. However, instead of using two scales, a dial is used to read the final fraction of an inch or a millimetre on a dial. The measurement taken on a dial caliper is very easy to read.
Digital Caliper
Digital calipers use linear encoders to measure internal and external distances. This is then shown on a digital display which is simple to use and easy to read. Available with metric and imperial conversions so you can accurately measure objects with ease.
Spring Caliper
The primary purpose of spring calipers is to measure the internal and external diameter of an object. They differentiate by the measuring edges, and get the name spring caliper by the spring joint that loads onto the nut. To adjust the size of the measuring tips turn the adjuster clockwise or anti-clock.
Where does the term Vernier come from?
The vernier caliper was invented by a French mathematician named Pierre Vernier.
Are there calibration options?
We offer calibration on a wide range of vernier calipers and digital callipers.
Application Information
Calipers are found in many industrial applications from mechanical engineering to medicine and science to metalworking.

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Description Price Caliper Type Capacity Imperial or Metric Display Type Calibrated Accuracy Resolution
RS Stock No. 268-9138
Mfr. Part No.DW8517
BrandStarrett
£24.28
Each
Units
Spring 150mm Both None - - -
RS Stock No. 268-9093
Mfr. Part No.DW849
BrandStarrett
£18.52
Each
Units
Spring 100mm Both None - - -
RS Stock No. 307-5120
Mfr. Part No.DW990
BrandStarrett
£75.06
Each
Units
Vernier 150mm Metric Analogue UKAS ±0.02 mm -
RS Stock No. 224-5457
Mfr. Part No.DW990
BrandStarrett
£32.59
Each
Units
Vernier 150mm Metric Analogue - ±0.02 mm -
RS Stock No. 124-3570
Mfr. Part No.DW990
BrandStarrett
£75.06
Each
Units
Vernier 150mm Metric Vernier UKAS ±0.02 mm -
RS Stock No. 224-5441
Mfr. Part No.DW852
BrandStarrett
£29.45
Each
Units
Spring 150mm Metric None - - -
RS Stock No. 269-1119
Mfr. Part No.DW8507
BrandStarrett
£19.24
Each
Units
Spring 150mm Metric None - - -
RS Stock No. 224-5413
Mfr. Part No.DW850
BrandStarrett
£23.93
Each
Units
Spring 150mm Metric - - - -
RS Stock No. 224-5429
Mfr. Part No.DW851
BrandStarrett
£23.78
Each
Units
Spring 150mm Metric - - - -
RS Stock No. 268-9100
Mfr. Part No.DW8495
BrandStarrett
£18.16
Each
Units
Spring 150mm Metric None - - -
RS Stock No. 224-5362
Mfr. Part No.DW900
BrandStarrett
£88.85
Each
Units
Dial 150mm Metric Analogue - ±0.02 mm -
RS Stock No. 307-5114
Mfr. Part No.DW900
BrandStarrett
£161.43
Each
Units
Dial 150mm Metric Analogue UKAS ±0.02 mm -
RS Stock No. 268-9122
Mfr. Part No.DW8513
BrandStarrett
£25.36
Each
Units
Spring 100mm Metric None - - -