The JBO Thread Plug Gauge (GO) – Metric Fine, Left-Hand, 6H, M48 x 1 is a precision inspection tool for verifying threaded holes to the metric fine standard. Designed for engineers, machinists, inspectors, and maintenance teams, it delivers fast, reliable go/no-go checks that confirm holes meet the M48 x 1 left-hand thread specification.

• Accurate M48 x 1 Left-Hand Go Gauge: Precisely sized to metric fine threads, it confirms hole acceptance quickly by passing only when the internal thread matches the GO size, delivering repeatable go/no-go results in production, maintenance, and quality audits.
• Hardened Steel Construction: Built from hardened steel for exceptional wear resistance, ensuring long service life and consistent performance in busy workshops and demanding environments.
• Clear, Easy-To-Use Design: Simple handling and straightforward identification of properly threaded holes support fast inspections, reduced downtime, and clear QC records.

By using the JBO Thread Plug Gauge, teams can quickly verify that threaded holes conform to the M48 x 1, 6H standard, reducing rework and misfits. Its durable construction stands up to daily use on busy lines, and the fast GO checks help streamline quality control, speed assemblies, and improve overall process reliability.