Starrett T444.1XRL-6 Outside Micrometer 6 in

Product Description

The STARRETT T444.1XRL-6 is a mechanical outside micrometer designed for precision measurement of external dimensions. It delivers a 6-inch maximum measurement range with a graduation of 0.0001 inches and an accuracy of 0.0001 inches, making it suitable for close-tolerance inspection work. The micrometer features a ratchet stop thimble for consistent measuring force and a rotating spindle for smooth, repeatable operation. Solid carbide measuring faces resist wear over extended use. This instrument is used by machinists, tool-and-die technicians, and quality control professionals who require reliable, high-resolution linear measurements in shop or field environments.

The T444.1XRL-6 is suited for measuring shafts, stock, tubing, and machined components where tight dimensional tolerances must be verified. The hammertone baked enamel frame finish provides corrosion resistance in typical shop environments. It ships with a protective case and a wrench for spindle adjustment, supporting immediate use after receipt. Technicians working in HVAC, refrigeration fabrication, plumbing, or general mechanical trades will find this micrometer appropriate for any application requiring precise outside-diameter or thickness verification up to 6 inches.

Key Features

• 6-inch maximum measurement range with 0.0001-inch graduation for high-resolution readings
• Accuracy of 0.0001 inches supports close-tolerance inspection requirements
• Ratchet stop thimble provides consistent, repeatable measuring force
• Rotating spindle enables smooth engagement with the workpiece
• Solid carbide measuring faces extend service life under frequent use
• Includes protective case and wrench for ready deployment

Compatibility

Designed as a standard mechanical outside micrometer suitable for general precision measurement tasks across machining, fabrication, and mechanical trade applications requiring up to 6 inches of measurement range.

Installation Notes

Calibrate the micrometer to a known standard before use, particularly after transport or storage. Keep the measuring faces clean and free of debris to maintain accuracy. Store the instrument in the included case when not in use to protect the measuring faces and frame. This tool does not require power-down procedures but should be handled in accordance with standard metrology practices to preserve calibration.