Spi CMS220519042 Electronic Micrometer Head 1 in

Product Description

The SPI CMS220519042 is an electronic micrometer head designed for high-precision linear measurement in toolroom, metrology, and machine-building applications. It covers a measurement range from 0 to 1.00 inch with a resolution of 0.0001 inch and features a digital output interface for direct data transfer to compatible measurement systems. The thimble uses a ratchet-style drive mechanism for consistent measuring force, and the spindle lock secures the reading once a dimension is captured. A carbide measuring face resists wear during repeated use. Licensed technicians, machinists, and metrology professionals install and calibrate this type of head.

The CMS220519042 fits applications where a standalone micrometer head must be integrated into a fixture, bench stand, or automated gauging setup. Its 12.0 mm shank diameter and 17.5 mm shank length suit standard micrometer head mounting bores. The rotating spindle allows for zero-setting and positional adjustment without disturbing the workpiece. Data output capability makes it suitable for SPC data collection in production environments. It ships with a wooden storage box, a CR2032 lithium battery installed, and is calibrated to ASME B89.1.13 standards.

Key Features

• 0 to 1.00 inch measurement range with 0.0001 inch resolution
• Digital data output for SPC and direct computer interface
• Carbide measuring face for extended wear resistance
• Ratchet thimble for repeatable, consistent measuring force
• Rotating spindle with spindle lock for precise zero-setting and position hold
• Calibrated to ASME B89.1.13; includes wooden box and CR2032 lithium battery

Compatibility

Designed for integration into fixtures, stands, or gauging assemblies that accept a 12.0 mm shank-diameter micrometer head. Confirm shank bore depth and clamping arrangement before installation.

Installation Notes

Installation is typically performed by a machinist or metrology technician. Secure the shank in the mounting bore using the appropriate clamp nut or collet-style holder; note that a clamp nut is not included with this unit. Verify that the spindle axis is aligned with the measurement axis of the fixture before locking down to avoid side-loading the spindle. Replace the CR2032 battery when the low-battery indicator activates to maintain measurement accuracy.