Spi CMS220519007 Electronic Outside Micrometer 6-7 in

Product Description

The SPI CMS220519007 is a digital outside micrometer designed for precise external diameter and thickness measurements in the 6 to 7 inch range. It delivers an accuracy of plus or minus 0.00020 inches, making it suitable for close-tolerance inspection work in machine shops, manufacturing facilities, and trade environments where verified dimensional data is required. The measuring faces are carbide-tipped for extended wear resistance, and the ratchet thimble provides consistent, repeatable measuring force. A lever-style lock nut holds the reading once set. The unit carries an IP65 rating, meaning it is protected against dust ingress and low-pressure water jets, which is important in coolant-present or dirty shop environments. It ships with a CR2032 lithium battery installed and is calibrated to ASME B89.1.13 standards.

This micrometer is used in precision measurement applications across metalworking, machining, toolroom inspection, and mechanical trades. It is appropriate for measuring shafts, bores, and machined components that fall in the 6 to 7 inch outside-dimension range. The digital readout reduces interpolation error compared to analog verniers, which makes it well suited for technicians who need fast, accurate readings during production checks or incoming inspection. The rotating spindle supports standard measurement practice for outside micrometer technique.

Key Features

• Measurement range of 6 to 7 inches with plus or minus 0.00020 inch accuracy
• Carbide-tipped measuring faces for increased durability and wear resistance
• Ratchet thimble delivers consistent measuring force across readings
• IP65 rating provides protection against dust and water spray in shop environments
• Lever-style lock nut secures the spindle position for transfer measurements
• Calibrated to ASME B89.1.13 standard with CR2032 lithium battery included

Compatibility

Designed as a direct-use digital outside micrometer for general precision measurement applications requiring a 6 to 7 inch measuring range.

Installation Notes

Outside micrometers require no mechanical installation but should be handled and stored according to standard metrology practices. Before use, clean the measuring faces and verify the zero reading against a calibrated standard or gauge block appropriate for the 6 inch setting. Avoid dropping or striking the instrument, as impact can shift calibration. Periodic recalibration against traceable standards is recommended per your facility quality program.