Mitutoyo 983536 Depth Micrometer Rod 11 to 12 Inches

Product Description

The MITUTOYO 983536 is a depth micrometer extension rod designed for use with Mitutoyo 139 and 329 series depth micrometers. It extends the measurement range of compatible depth mics to cover depths from 11 to 12 inches, making it a precision accessory for machinists, tool-and-die technicians, and quality control professionals working with deep bores, slots, steps, and counterbores. The rod measures 4.00 millimeters in diameter and has an overall length of 383.70 millimeters (approximately 15.10 inches). It is a direct OEM-style accessory sold as a single unit.

This extension rod is suited for shop floor and inspection environments where accurate depth measurement is required across deep features. It is a standard accessory for technicians maintaining a set of interchangeable depth rods for Mitutoyo depth micrometers. The 983536 fits the 139 and 329 series Mitutoyo depth mic bases and allows a single base to cover a wide range of measurement depths when combined with the appropriate rod set.

Key Features

• Extends depth micrometer range to cover 11 to 12 inches of measurement depth
• Rod diameter of 4.00 millimeters for precise fit in compatible depth mic bases
• Overall length of 383.70 millimeters for reach into deep features
• Compatible with Mitutoyo 139 and 329 series depth micrometers
• Sold individually — no minimum order beyond one unit

Compatibility

Designed for use with Mitutoyo 139 and 329 series depth micrometers as stated by the manufacturer.

Installation Notes

Installation of this rod is performed by a machinist or metrology technician following the depth micrometer manufacturer guidelines. Before swapping extension rods, ensure the micrometer base is clean and free of chips or debris that could affect seating and measurement accuracy. Refer to the Mitutoyo depth micrometer instruction manual for proper rod installation and locking procedures. Do not force the rod into the base, as this can damage the mating surfaces and affect calibration.