Starrett 684-3Z Dial Internal Chamfer Gage Range Angle - 0-1 90-127

The Starrett 684-3Z is a precision dial internal chamfer gage designed to directly measure the diameter of chamfered holes with a 0–1" measurement range and a 90°–127° included angle range. With graduations of 0.001", this gage delivers accurate, repeatable readings without the need for a setting master—making it an efficient solution for quality control and production inspection environments.

Key Features:

• Measurement Range: 0–1" (inch)
• Graduation: 0.001"
• Angle Range: 90°–127° included angle
• Direct Diameter Reading: Measures the largest diameter of any chamfer within the supported angle range
• Three-Blade Plunger Design: When pressed against a flat surface, the gage reads the set number stamped on the back of the indicator; adjustable for wear
• AGD Design Dial Indicator
• No Setting Master Required
• Made in the USA
• EDP: 63690
• Includes deluxe padded storage case

The Starrett 684-3Z internal chamfer gage is ideal for machinists, toolmakers, and quality inspectors who require fast, direct-reading measurement of chamfered bores. Electronic indicator versions are available upon request.