The Insize 4120 Thread Ring gauges for gauging outside thread, to determine if the thread is within the upper/lower limits of the components tolerance. The hole size can be determined by using go and no go plug. Made from hardened alloy steel for longer tool life and durability from machine shop wear.

• Go and No-Go are supplied seperatley.
• Class 6G tolerance.
• Thread Standard: ISO1502.

Specification