InSize 3203-4A Outside Micrometer 3-4 Inch Measuring Tool

The InSize 3203-4A is a precision outside micrometer designed for accurate measurement of external dimensions in the 3-4 inch range. This mechanical measuring instrument features a hardened and ground spindle and anvil for durability and consistent accuracy.

Key Features:

• Measuring range: 3-4 inches (75-100mm)
• Graduation: 0.001 inch (0.01mm) for precise measurements
• Satin chrome finish for corrosion resistance
• Ratchet stop mechanism ensures consistent measuring pressure
• Carbide-tipped measuring faces for extended tool life
• Includes fitted storage case for protection

Ideal for machinists, tool and die makers, quality control inspectors, and mechanical engineers who require reliable dimensional measurements. The ratchet thimble provides uniform pressure application to ensure repeatable accuracy across multiple measurements.