JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M42 x 1 NCDC Drill Chuck making it suitable for engineering

making it suitable for engineering and manufacturing applications where hole size accuracy matters

Durable HSS‑E cobalt construction: M35 cobalt content boosts wear resistance

helping you push through challenging cuts with fewer tool changes and longer tool life

ships in 24–48 hours: Ensures you receive a precisely made tool with predictable lead times to keep production on schedule

and maintain sharpness through demanding mold-and-die cycles

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M42 x 1 NCDC Drill Chuck making it suitable for engineeringThe JBO Thread Plug Gauge (NoGo) Metric Fine is a precision inspection tool designed to verify metric fine threaded holes. Specifically configured for left handed M42 x 1 threads and 6H tolerance, this NoGo gauge helps you quickly confirm holes meet the required size limits during quality checks. Constructed from hardened steel, this plug gauge resists wear and stands up to daily use in demanding workshop environments, delivering reliable performance