Fowler 52-225-226-0 Mechanical Depth Micrometer 6 in

Product Description

The FOWLER 52-225-226-0 is a mechanical depth micrometer designed for precise depth measurement in machining, tool-and-die, and metalworking applications. It delivers a 6-inch measurement range using a set of 6 interchangeable rotating rods, each with a 3/16-inch (0.176-inch) diameter. The ratchet stop thimble ensures consistent measuring force to maintain repeatable readings, and the 0.0001-inch accuracy rating makes it suitable for tight-tolerance inspection work. The satin chrome finish reduces glare under shop lighting and resists corrosion during regular handling. A digital counter aids in reading the thimble position quickly and accurately.

This depth micrometer is used in manufacturing, inspection, and maintenance environments where precise depth readings are required on bores, steps, slots, and recesses. The 4-inch base length provides stable contact across wider surfaces, reducing tip error on flat or lapped reference surfaces. It is well suited for use on CNC setups, fixture inspection, and incoming part verification. The included fitted case and wrench support organized storage and rod changes in a production or tool-room setting.

Key Features

• 6-inch total measurement range with 6 interchangeable rotating rods
• Ratchet stop thimble for consistent, repeatable measuring pressure
• 0.001-inch graduation with 0.0002-inch accuracy
• 4-inch base length for stable seating on wide reference surfaces
• Digital counter for fast, clear thimble reading
• Satin chrome finish on tool steel measuring faces resists corrosion and reduces glare
• Includes fitted case and wrench for rod changes and storage

Compatibility

Designed as a standard mechanical depth micrometer for use in tool-room, inspection, and production machining environments where 6-inch-range depth measurement with interchangeable rods is required.

Installation Notes

Depth micrometers are used by machinists, tool-and-die makers, and quality control technicians. Before use, ensure the measuring faces and base are clean and free of chips or burrs that could affect zero calibration. Zero the instrument on a reference surface using the included wrench to seat the correct rod before taking measurements. Store in the fitted case to protect the measuring faces and prevent damage to the rods.