Starrett 224AARLZ Interchangeable Anvil Outside Micrometer Set 0-4 in.

The Starrett 224AARLZ is a precision interchangeable anvil outside micrometer offering a combined measuring range of 0–4 inches. Designed for professional machinists, toolmakers, and quality control technicians, this micrometer set provides exceptional accuracy and versatility in a single instrument by allowing the user to swap anvils to cover multiple measurement ranges without purchasing separate micrometers.

Built to Starrett's renowned standards of American craftsmanship, the 224AARLZ features a hardened and ground measuring faces, a reliable ratchet stop for consistent measuring pressure, and a lock nut to secure readings. The thimble is graduated in 0.001 in. increments, and the barrel is clearly marked for easy reading in both inch graduations.

Key Features:

• Measuring range: 0–4 inches via interchangeable anvils
• Ratchet stop for consistent, repeatable measuring pressure
• Lock nut (lock ring) to secure micrometer readings
• Hardened and ground carbide-tipped measuring faces for extended wear life
• Satin chrome finish barrel and thimble for reduced glare and improved readability
• Includes multiple interchangeable anvils to cover the full 0–4 in. range
• Friction thimble for smooth, precise adjustment
• Supplied in a fitted storage case to protect anvils and maintain calibration

The Starrett 224AARLZ is an ideal solution for shops and inspection departments that require a wide measurement range with professional-grade accuracy. Starrett has been manufacturing precision measuring tools in the USA since 1880, and the 224 series upholds that legacy of quality and reliability.