Fowler 54-860-275-0 Electronic Inside Micrometer

Product Description

The FOWLER 54-860-275-0 is an electronic inside micrometer designed for precise internal bore and diameter measurements in professional metrology and machinist applications. It covers a measurement range of 0.0200 to 1.2000 inches with a resolution of 0.00005 inches and an accuracy of 0.00025 inches. The tool features a large, easy-to-read LCD display and a friction thimble for consistent, repeatable feel during measurement. The unit carries dual ingress protection ratings of IP40 and IP54, making it resistant to water and contaminants in shop environments. Machinists, toolroom technicians, and quality control professionals are the primary users of this instrument.

This inside micrometer is suited for use in precision manufacturing, toolroom inspection, and quality assurance settings where internal dimensions must be verified to tight tolerances. The 0.0200 to 1.2000 inch measuring range makes it appropriate for small-bore applications commonly encountered in engine rebuilding, machined component inspection, and general dimensional metrology. One setting ring is included to support calibration and zero-setting procedures. The instrument ships with a protective case for storage and transport.

Key Features

• Measurement range of 0.0200 to 1.2000 inches for small-bore internal measurement
• Resolution of 0.00005 inches for high-precision readings
• Accuracy of 0.00025 inches meets demanding inspection standards
• Dual ingress protection ratings: IP40 and IP54 for water and dust resistance in shop environments
• Large LCD display for clear readout under varying lighting conditions
• Friction thimble ensures consistent measuring force and repeatable results
• Data output capability for integration with statistical process control or data logging systems

Compatibility

Designed as a standalone precision measurement instrument suitable for standard inside micrometer applications in toolroom, manufacturing, and inspection environments.

Installation Notes

This instrument requires no installation and is used as a handheld measuring tool. Prior to use, zero the micrometer using the included setting ring in accordance with standard metrology procedures. Install the required 357 battery before first use. Store the instrument in the included case when not in use to protect the measuring surfaces and electronics from damage.