Fowler 52-253-001-1 Mechanical Outside Micrometer

Product Description

The FOWLER 52-253-001-1 is a mechanical outside micrometer designed for precise linear measurement in machining, fabrication, and quality-control applications. It covers a measurement range of 0 to 1 inch with a graduation of 0.001 inches and an accuracy of 0.0001 inches. The friction thimble delivers consistent, repeatable gauging force so readings are not affected by operator variation. Solid carbide measuring faces resist wear under regular shop use. A positive lever locking clamp secures the spindle in place for reliable measurement transfer. This instrument is suited for machinists, tool and die technicians, and precision measurement professionals.

The 52-253-001-1 is used wherever tight-tolerance outside diameter, thickness, or width measurements are required. Typical applications include inspecting turned parts, bar stock, sheet metal, and machined components in job shops, manufacturing facilities, and tool rooms. The non-rotating spindle prevents surface marking on finished workpieces. The included case and wrench support clean storage and routine calibration adjustments in field and bench settings.

Key Features

• 1 inch measurement range with 0.001 inch graduation for fine linear readings
• Accuracy of 0.0001 inches for tight-tolerance inspection work
• Friction thimble provides consistent gauging pressure and repeatable results
• Solid carbide measuring faces for extended wear life in production environments
• Positive lever locking clamp secures spindle position during measurement transfer
• Non-rotating spindle protects delicate or finished workpiece surfaces
• Includes protective storage case and adjustment wrench

Compatibility

Designed as a standard 0 to 1 inch range outside micrometer suitable for general-purpose precision measurement in machining and inspection workflows.

Installation Notes

Outside micrometers require no installation but should be calibrated against a known standard or gauge block before use. Handle measuring faces with care and avoid contact with abrasive surfaces. Store the instrument in the included case when not in use to protect the faces and thimble mechanism. Calibration and maintenance should be performed by a qualified metrologist or toolroom technician in accordance with applicable shop quality standards.