INSIZE 3205-72 Outside Micrometer With Extension Anvil Collar, 64-72"

INSIZE 3205-72 Outside Micrometer With Extension Anvil Collar

Are you looking for a large-range, high-precision outside micrometer designed for measuring very large diameters or external surfaces in the 64″ to 72″ range? The INSIZE 3205-72 is has an extension anvil collar design allows the micrometer to adapt across a long measuring span, making it ideal for heavy-duty industrial, fabrication, or large-scale machining applications. With fine graduation, wear-resistant carbide faces, and a stable C-frame structure, this micrometer delivers accurate, repeatable measurements on large parts.

Key Features

• Wide Measuring Range (64″ to 72″): Perfect for measuring the external diameter of large cylindrical workpieces, pipes, or structural components.
• Fine Graduation: Features a resolution of 0.0005″, enabling very precise measurement.
• Carbide Measuring Faces: Both the anvil and spindle tips are made of carbide, improving durability and maintaining accuracy over time.
• Ratchet Stop: Helps apply consistent measuring force and avoids over-tightening, improving repeatability.
• Adjustable Collar/Extension Anvil: The extension anvil collar allows the anvil length to be adjusted for different points within the 64 to 72″ range, giving flexibility without needing multiple micrometers.
• Setting Standards Included: Comes with calibration / setting standards so you can verify and zero the micrometer for accurate measurement.
• Hollow (“Pipe”) Frame Design: Likely built with a hollow C-frame for lighter overall weight while retaining rigidity.
• Durable Construction: Built to last with high-quality materials and a design suited for shop floor / industrial use.
• Comes in a Fitted Wooden Storage Case: Compact protection during transport and storage.

Specifications

Items Included

• The micrometer body with extension-collar anvil
• Adjustable anvil collar (to extend the reach for 64" to 72″)
• Setting standards (calibration rods or reference rings) for zeroing / calibration
• Zero adjusting wrench to fine-tune the micrometer reading
• Fitted wooden storage case to protect the micrometer when not in use
• Instruction / user manual

Insize 3205-72 Outside Micrometer With Extension Anvil Collar Manual