3 POINTS INSIDE MICROMETER SET 20-50MM (MICROMETERS INC. 20-25, 25-30,

Complete set to measure a range 20mm up to 50mm. A precision measuring instrument designed to measure the internaldiameter of bores, cylinders, and other similar features with high accuracy. This tool is commonly used inengineering, machining, and quality control to ensurethat internal dimensions meet specified tolerances. Unlike traditional inside micrometers, the three-point contactsystem allows for more stable and reliable measurements, particularly in larger bores.

The set AC362-509-05 includes:

• Micrometers: 20 - 25mm, 25 - 30mm, 30 - 40mm, 40 - 50mm
• Full range of measurements: 20mm - 50mm
• Setting Rings included: Ø25mm and Ø40mm
• Extention Rod: 150mm

How it works:

• Three-point contact: The micrometer has three measuringpoints that evenly distribute pressure on the inner surface of the hole, ensuringaccurate and repeatable measurements.
• Digital display: The measured diameter is displayed digitally,eliminating the need for manual reading and reducing the possibility of errors.
• Extension rods: These can be used to measure deeper holes.

Applications

• Machining and Metalworking: Used to measure theinternal diameters of bores and holes in metal components, ensuring thatthey meet the required specifications.
• Quality Control: Essential in inspection processes toverify the accuracy of internal dimensions in manufactured parts.
• Engineering: Applied in various engineering tasks whereprecise internal measurements are critical, such as in the design andfabrication of mechanical parts.
• Automotive and Aerospace Industries: Used for measuringthe internal diameters of engine cylinders, bearing races, and othercritical components that require precise tolerances.

Advantages of Three-Point Micrometers:

• Improved accuracy: Ensures precise centering andmeasurement compared to two-point micrometers.
• Reduced measurement error: Minimizes the impact ofbore irregularities.
• Suitable for various shapes: Can be used for bothcylindrical and irregular bores.

Technical Specifications