STARRETT C391 60 DEGREE CENTER GAGE

Series C391

FEATURES:

• Extremely handy for use in grinding and setting screw cutting tools, meets all of the following standards: American National or U.S. 60°, Whitworth or English 55°, and Metric 60°.
• Have a very useful scale for finding the number of threads per inch through graduations in 14ths, 20ths, 24ths, and 32nds of an inch.
• Have a table of double depths of threads for determining size of tap drills.
• Made of spring-tempered steel with satin chrome finish. Gaging surfaces ground.

C391 STARRETT 60 DEGREE CENTER GAGE