Starrett C391 Offers

The Starrett C391 Center Gauge can be used for a number of measurement applications. Designed with easily readable degree graduations and durable steel construction, this gauge can ensure that tap drill sizing, ground gauging, and grinding are done accurately.

Features

• Meets American Unified National Standard and US 60° standards
• 0.07, 0.05, 0.04 and 0.03" (1.78, 1.27, 1.02 and 0.76 mm) graduations allow you to easily find the number of threads per inch
• Table with double depths of threads lets you determine the size of tap drills
• Satin chrome finish for durability
• Ground gauging surfaces ensure precision results