#C391 - USA Standard 60° - 14ths; 20ths; 24ths; 32nds Graduation - Center Gage with Double Depths of American National

Item #: MV7051475
Manufacturer: Starrett
Mfg #: 51475

Technical Specifications:
•Brand Name: Starrett •Graduation: American Unified National Standard, 60° •Model Number: C391 •Thread: USA Standard 60°

Description:
•Two types for Am. Nat. U.S.A. 60° Std. or Whitworth - English 55° Std. has scale graduated in 14ths, 20ths, 24ths and 32nds for finding number of threads per inch. No. C391 has table of double depths of threads for determining size of tap drills •All gaging surfaces ground.

Shipping Info:
•Actual Weight - .0100 •Dimensions - Height: .902 Length: 2.00 Width: 1.50