High-precision metric thread plug gauge for internal thread inspection

GO/NO-GO design ensures fast and accurate pass/fail thread testing

6H tolerance grade for precise metric internal screw measurement

Made from hardened, wear-resistant steel for long service life

Suitable for fine-pitch and standard metric threads

Clearly marked GO and NO-GO ends for easy identification

Ideal for machining, CNC processing, quality control, and inspection

Ensures thread accuracy, consistency, and compliance with standards

Compact and easy to carry for workshop or on-site use

Supplied as 1 piece precision thread test tool