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The MITUTOYO 209-955 is an electronic caliper gage designed for precision internal groove measurement. Equipped with a ball/ball contact point configuration, this gage is built for accurate dimensional inspection of grooves, slots, and recesses. It measures grooves with a width of 0.1200 inches, making it suitable for fine-tolerance work where standard jaw calipers cannot reach. Metrology technicians, machinists, and quality control inspectors use this type of gage in production and inspection environments where repeatable, verifiable measurements are required.
This caliper gage is applied in manufacturing and inspection settings where internal groove dimensions must be verified to close tolerances. The ball/ball contact point design allows the gage to seat consistently within a groove profile, providing stable and repeatable readings. Typical use cases include quality inspection of machined components, hydraulic fittings, seal grooves, and precision bores in both job shop and production line environments.
Designed as an OEM-style replacement or accessory contact point set for compatible Mitutoyo electronic caliper gage systems. Refer to the Mitutoyo product documentation to confirm fitment with your specific caliper gage model before installation.
Installation and contact point replacement should be performed by a qualified metrology technician or machinist familiar with precision measuring instruments. Power down or disable the gage before replacing contact points to avoid erroneous readings or damage to the electronic display. Handle contact points with care to avoid nicks or contamination that could affect measurement accuracy. Follow the manufacturer service documentation for proper torque and seating procedures specific to this gage model.
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