Fowler 52-240-001-1 Mechanical Outside Micrometer 1 in

Product Description

The FOWLER 52-240-001-1 is a mechanical outside micrometer designed for precise external dimensional measurement in shop, field, and inspection environments. It covers a 0 to 1 inch measuring range with a graduation of 0.0001 inches and an accuracy of 0.0001 inches, making it suitable for close-tolerance work where consistent, repeatable readings are required. The friction thimble provides controlled feel during measurement, reducing the risk of over-tightening and protecting measurement accuracy. Solid carbide measuring faces resist wear over extended service life. This tool is used by machinists, tool-and-die workers, pipefitters, and mechanical contractors who require hand-held precision measurement on the job.

The 52-240-001-1 is well suited for measuring shaft diameters, tube wall thicknesses, fastener shanks, and other small external dimensions in residential, commercial, and industrial mechanical work. The sleeve features a quick zero-adjustment function, allowing technicians to reset the reference point without disassembly. The unit ships with a protective case and a wrench for sleeve adjustment, making it ready for immediate use out of the box.

Key Features

• 0 to 1 inch measuring range with 0.0001 inch graduation
• Accuracy of 0.0001 inches for close-tolerance dimensional checks
• Friction thimble provides consistent measuring force and prevents spindle over-travel
• Solid carbide measuring faces for extended wear resistance
• Quick zero adjustment on sleeve for fast field calibration
• Includes protective case and adjustment wrench

Compatibility

Designed as a standard 0 to 1 inch range mechanical outside micrometer suitable for general external measurement tasks across mechanical trades and inspection applications.

Installation Notes

This instrument is a hand-held measuring tool and does not require installation. Before use, verify the zero setting using the included wrench and reference the sleeve zero-adjustment feature as needed. Clean the measuring faces with a lint-free cloth before each use to ensure accurate contact. Store in the included case to protect the measuring faces and thimble from impact and contamination.