Mitutoyo 983530 Depth Micrometer Rod 8 to 9 Inches

Product Description

The MITUTOYO 983530 is a depth micrometer extension rod designed to expand the measurement range of compatible Mitutoyo depth micrometers to cover depths from 8 to 9 inches. The rod measures 307.50 millimeters in overall length and has a 4.00-millimeter diameter, conforming to the standard rod geometry required for precise depth measurement work. This accessory is installed by metrology technicians, machinists, and quality control professionals who need accurate depth readings beyond the base range of their micrometer set.

This rod is suited for use in machine shops, manufacturing facilities, and quality inspection environments where depth measurements in the 8 to 9 inch range are required. It is a direct-fit accessory for Mitutoyo 140 and 329 series depth micrometers. The 983530 fits into the micrometer thimble spindle in the same manner as standard rods in the set, allowing technicians to extend measurement capability without purchasing additional instruments.

Key Features

• Extends depth micrometer range to cover 8 to 9 inches of measurement depth
• 4.00-millimeter rod diameter for standard fit with compatible Mitutoyo depth mic thimbles
• Overall rod length of 307.50 millimeters
• Sold individually — single rod per package
• Designed as a direct OEM accessory for Mitutoyo 140 and 329 series depth micrometers

Compatibility

Compatible with Mitutoyo 140 and 329 series depth micrometers, as specified in the product documentation. This rod covers the 8 to 9 inch measurement range within those micrometer sets.

Installation Notes

Installation is performed by machinists or metrology technicians familiar with precision measuring instruments. Before swapping rods, ensure the micrometer is clean and free of chips or debris that could affect seating and accuracy. Insert the rod fully and verify it is locked securely per the micrometer manufacturer instructions before taking measurements. Handle the rod carefully to avoid nicks or surface damage that could compromise measurement accuracy.