Starrett 68124 Mechanical Micrometer 0.1 Inch Range

Product Description

The STARRETT 68124 is a mechanical outside micrometer built for precision measurement in demanding trade and industrial environments. It covers a measurement range of 0.1 inches with a graduation of 0.0001 inches and an accuracy of 0.0001 inches, making it suitable for close-tolerance inspection work. The ratchet stop thimble ensures consistent measuring pressure across repeated readings, reducing operator-to-operator variation. Measuring faces are solid carbide, providing resistance to wear during high-cycle use. The unit ships with a case, contacts, setting ring, wrenches, and instructions, making it a ready-to-deploy inspection tool for machinists, tool-and-die workers, metrology technicians, and precision fabricators.

The STARRETT 68124 is used in shops and field environments where tight dimensional tolerances must be verified on small-diameter workpieces. The 0.1 inch range suits measurement of small bores, pins, shims, and similar components. The included setting ring at 0.1 inches allows the technician to verify calibration before use. With a gage depth of 0.375 inches and support for extension rods up to 6.0 inches in length, the micrometer accommodates a range of workpiece geometries. This instrument is suited for quality control inspection, incoming part verification, and in-process measurement on the shop floor.

Key Features

• 0.1 inch measurement range with 0.0001 inch graduation for high-resolution readings
• Accuracy rated at 0.0001 inches for close-tolerance inspection
• Ratchet stop thimble provides repeatable, consistent measuring pressure
• Solid carbide measuring faces resist wear in high-cycle applications
• Supports extension rods up to 6.0 inches for extended-reach measurements
• Includes case, contacts, setting ring, wrenches, and instructions

Compatibility

Designed as a standalone mechanical micrometer for general precision measurement applications. No specific system or equipment compatibility is stated in the product data.

Installation Notes

Calibrate the micrometer against the included setting ring before use and verify the zero reading with the anvil and spindle in contact. Clean measuring faces with a lint-free cloth before each use to prevent debris from affecting accuracy. Store the instrument in the provided case when not in use to protect the carbide faces and maintain calibration. Service and recalibration should be performed by a qualified metrology technician per the manufacturer guidelines.