Mitutoyo Dial Indicator 2959S Flat Bottom

Description

Condition

Used (Working Order / Tool Only).

This dial indicator is in used condition and functions correctly. The plunger action is smooth, and the bezel rotates freely for zero setting. Please Note: This unit is sold as the “tool only” and does not include the original box or storage case.

Specific Configuration: The plunger is currently fitted with a Flat Bottom Contact Point (rather than the standard ball tip). This configuration is highly desirable for specific applications like bore gauge setting, where a flat surface ensures positive contact with the internal push-rod mechanism.

Product Overview

The Mitutoyo 2959S is a specialised “One Revolution” dial indicator designed to eliminate reading errors. Unlike standard indicators where the needle spins multiple times (forcing you to count the revolutions), the 2959S has a limited range of 1.6mm, meaning the needle effectively makes only one full sweep.

This “error-free” design is the industry standard for Bore Gauge applications and Go/No-Go inspection. When measuring a bore, you never have to wonder if you are “one turn out” or misread the millimetres—what you see on the dial is the absolute truth. The dial is balanced (80-0-80) to clearly show positive and negative deviation from your set zero point. It features Mitutoyo’s proprietary shock-proofing mechanism to protect the gears from sudden spindle retraction, common when checking rough castings.

Brand Information

Mitutoyo Corporation (est. 1934) is the global benchmark for precision metrology. The Series 2 “One Revolution” indicators are a safety-critical tool in many machine shops; by mechanically preventing the user from misinterpreting the reading, they save thousands of dollars in scrapped parts caused by “off-by-one-millimetre” errors.

Specifications

Keywords

Mitutoyo, 2959S, one revolution indicator, error free indicator, bore gauge indicator, dial gauge, 0.01mm indicator, flat anvil indicator, inspection tool.