Starrett 670B Indicator Hole Attachment 9/16" Range

The Starrett 670B Indicator Hole Attachment is a precision accessory designed to extend the capability of dial indicators for internal bore and hole measurement. With a 9/16" measurement range, this attachment allows machinists and quality control professionals to accurately gauge small bores and holes that a standard indicator contact point cannot reach directly.

Starrett's 670-series hole attachments are engineered to work with compatible dial indicators, transmitting movement from the pivoting contact stylus back to the indicator spindle with minimal lost motion. This ensures accurate, repeatable readings essential for precision inspection work in manufacturing, tooling, and metrology environments.

Key Features:

• Measurement range: 9/16"
• Designed for use with compatible Starrett dial indicators
• Enables internal bore and hole measurement with a standard dial indicator
• Precision-machined construction for accurate, repeatable readings
• Compact design accesses tight spaces and small-diameter bores
• Durable Starrett quality — Made in USA

The Starrett 670B is an essential tool for any shop requiring precise internal diameter checks without the need for a dedicated bore gauge. It is a trusted addition to any precision measurement toolkit.