Starrett 63686 Internal Chamfer Gage 0-1 in 3-blade

Product Description

The STARRETT 63686 is an internal chamfer gage designed to measure chamfered bores and internal angled features. It uses a 3-blade plunger mechanism to contact the chamfer surface and deliver a direct reading without requiring a separate setting master. The measurement range spans 0 to 1 inch in diameter and covers included angles from 0 to 90 degrees. All contact surfaces are ground for accuracy. Constructed from hardened tool steel, the 63686 is built for repeatable use in machine shop and production inspection environments. Licensed machinists, toolmakers, and quality control technicians are the primary users of this instrument.

The STARRETT 63686 is suited for inspecting internal chamfers on machined parts in precision manufacturing settings. Typical applications include incoming inspection, in-process quality checks, and final part verification on turned or milled components. The gage is well matched to high-mix production floors where a quick, reliable chamfer check is needed without fixturing or a dedicated setting standard. It ships in a deluxe padded case, making it practical for tool crib storage or field inspection work.

Key Features

• Measures internal chamfers from 0 to 1 inch diameter with 0 to 90 degree included angle range
• 3-blade plunger design contacts the chamfer surface for a stable, repeatable reading
• No setting master required — ready to use out of the case
• All ground surfaces on hardened tool steel construction for long-term accuracy
• White dial face for clear readability in shop lighting
• Includes deluxe padded case for storage and transport
• Compatible with electronic indicators on request

Compatibility

Designed as a direct-reading internal chamfer gage suitable for standard machined bore and chamfer inspection applications requiring a 0 to 1 inch range and included angles up to 90 degrees.

Installation Notes

This instrument is used by machinists and quality technicians and requires no installation in the traditional sense. Before use, verify the gage mechanism moves freely and the plunger blades are clean and undamaged. Store in the provided padded case when not in use to protect the ground surfaces from impact or contamination. Do not exceed the stated measurement range, as overloading the plunger mechanism can affect calibration.