Niigata Seiki

THREAD LIMIT RING GAUGE( OLD JIS FOR INSPECTION CLASS 2 / GRIRⅡ)

GO/NOGO gauge for checking accuracy of thread

USE
● For internal / external screw thread inspection

 

FEATURES
● Enables to inspect whether threaded parts are within upper / lower limits of the screw’s prescribed dimensional precision
● Provided with inspection report
● Thread limit gauge is used to perform GO/NOGO inspection based on the minimum and maximum dimensions prescribed for each screw grade.

For acceptance of a threaded part, GO gauge should thread without any difficulties and NOGO gauge should not thread more than two complete revolutions.

 

MATERIAL
● Alloy tool steel