Starrett 449AZ-6R Micrometer Depth Gauge 0-6" Range 2-1/2" Base

The Starrett 449AZ-6R is a precision micrometer depth gauge designed for accurate depth, step, and slot measurements in machining, toolmaking, and quality control applications. Featuring a 0–6 inch measuring range and a 2-1/2 inch base, this instrument delivers the accuracy and reliability that L.S. Starrett is renowned for worldwide.

Key Features:

• Measuring Range: 0–6 inches
• Base Length: 2-1/2 inches for stable, flat-surface contact
• Thimble Style: Ratchet stop ("R" suffix) for consistent measuring pressure and repeatable readings
• Graduation: 0.0001 inch (with vernier) for high-resolution measurement
• Satin chrome finish reduces glare and resists corrosion
• Hardened and ground measuring rod and base for long-term durability
• Lock nut included for securing measurements during transfer
• Interchangeable rods allow use across the full range

The "AZ" designation indicates an antipodal (balanced) zero adjustment feature, making it easy to set and verify zero calibration. The ratchet stop thimble ensures uniform measuring pressure on every use, reducing operator-to-operator variation and improving measurement consistency.

Ideal for use in machine shops, tool rooms, inspection departments, and precision manufacturing environments. The Starrett 449AZ-6R meets the demanding standards expected from Starrett's professional-grade measuring instruments and is built to provide years of dependable service.