Fowler 52-240-013-0 Mechanical Outside Micrometer

Product Description

The FOWLER 52-240-013-0 is a mechanical outside micrometer designed for precision dimensional measurement in industrial, manufacturing, and trade settings. It covers a measurement range of 0 to 13 inches with a graduation of 0.001 inches and an accuracy of 0.011 inches. The ratchet stop thimble ensures consistent measuring pressure across repeated measurements, reducing operator-to-operator variation. Measuring faces are solid carbide, providing durability against wear during high-cycle use. This instrument ships with a case, standards, and a wrench, making it ready for immediate deployment on the shop floor or job site.

This micrometer is suited for machinists, toolmakers, quality control technicians, and trade professionals who need reliable outside diameter or thickness measurements on large workpieces. At 13 inches of range, it handles large-diameter shafts, plates, and structural components that fall outside the capacity of standard bench micrometers. It is appropriate for both production environments and field inspection work where portability and accuracy are both required.

Key Features

• 13 inch measurement range handles large workpieces beyond typical bench micrometer capacity
• 0.001 inch graduation for fine, repeatable readings
• Ratchet stop thimble maintains consistent measuring pressure across all users
• Solid carbide measuring faces resist wear during frequent use
• Quick, easy zero adjustment on sleeve reduces setup time between measurements
• Includes carrying case, standards, and wrench for complete out-of-box readiness

Compatibility

Designed as a general-purpose mechanical outside micrometer for dimensional inspection of large workpieces in industrial and trade applications requiring a 0 to 13 inch measurement range.

Installation Notes

This instrument is used by machinists, quality technicians, and skilled tradespeople performing dimensional inspection. Before use, verify calibration against the included standards and confirm the anvil and spindle faces are clean and free of debris. Zero the micrometer using the sleeve adjustment per the manufacturer procedure before taking measurements. Store in the provided case when not in use to protect the measuring faces and maintain calibration integrity.