A digital 2-/3-point bore gauge is a measurement tool used to measure the inside diameter of a cylinder or hole. It consists of a gauge head with two or three small contact points that can be extended or retracted to fit snugly inside the bore or hole being measured. The contact points are spring-loaded and apply a constant pressure against the inside surface of the bore.

The gauge is connected to a digital display unit that provides a digital readout of the measured diameter, which can be in either inches or millimeters. The digital display unit may also have features such as data output, presetting, and tolerance setting.

The 2-point bore gauge is used for measuring the diameter of bores or holes with a constant cross-section, such as cylinders, while the 3-point bore gauge is used for measuring the diameter of bores or holes with a tapered cross-section, such as valve guides.

Digital 2-/3-point bore gauges are commonly used in manufacturing, machining, and engineering applications where accurate measurement of bore diameters is critical for ensuring quality and precision.

Digital 2-/3-point bore gauges can be used for a variety of applications, including:

  1. Measuring the inside diameter of cylinders, such as engine blocks, hydraulic cylinders, and pneumatic cylinders.
  2. Measuring the diameter of bores in machine components, such as gears, bearings, and shafts.
  3. Checking the roundness and straightness of bores.
  4. Measuring the wear of cylinders and bores over time.
  5. Checking the alignment of bores and holes.

Digital 2-/3-point bore gauges are highly accurate and can measure bore diameters to within a few micrometers or even less. They are also easy to use and provide fast and reliable measurements, making them ideal for use in production environments where speed and accuracy are important. Additionally, the digital readout makes it easy to record and document measurements for quality control purposes. Overall, digital 2-/3-point bore gauges are an essential tool for any industry that requires precise measurement of bore diameters.

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