Spi MS150825010 Mechanical Micrometer Head 0.5 in

Product Description

The SPI MS150825010 is a mechanical micrometer head designed for precise linear measurement in tool, fixture, and machine applications. It features a 0.5-inch measurement range, a 0.51-inch thimble diameter, and a 0.2-inch spindle diameter with a flat spindle end. Accuracy is rated to 0.0002 inches, making it suitable for high-tolerance work in machining, metrology, and precision assembly environments. The satin chrome finish resists corrosion and reduces glare during use. At 2.64 inches in overall length and 3 pounds, this head is compact enough for integration into custom fixtures or measuring setups. A clamp nut is supplied for secure mounting. Machinists, toolmakers, and metrologists are the primary installers and users of this component.

This micrometer head is intended for use in precision measurement applications where a mechanical, non-digital readout is required. It is suited for integration into jigs, fixtures, optical stages, and custom measuring instruments across manufacturing, quality control, and laboratory environments. The rotating spindle design allows for smooth travel adjustment, and the absence of a digital counter keeps the mechanism straightforward and easy to service. Residential HVAC, plumbing, or electrical trade applications are not typical uses for this product.

Key Features

• 0.5-inch measurement range with accuracy to 0.0002 inches
• Flat spindle end for consistent contact on flat workpiece surfaces
• Rotating spindle for smooth, repeatable linear travel adjustment
• Satin chrome finish for corrosion resistance and reduced glare
• Clamp nut included for secure fixture or stage mounting
• Mechanical operation with no digital counter — simple, reliable, serviceable

Compatibility

Designed as a standard mechanical micrometer head for integration into precision fixtures, optical stages, jigs, and custom measuring instruments requiring a 0.5-inch range and flat spindle configuration.

Installation Notes

Installation is typically performed by machinists or metrologists integrating the head into a fixture or measuring stage. Secure the head using the supplied clamp nut and verify that the spindle axis is properly aligned with the measurement axis before use. Do not overtighten the clamp nut, as this can affect spindle travel and measurement accuracy. Verify calibration against a known reference standard after installation.