JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M42 x 1 NCDC Drill Chuck reducing downtime and part rework

reducing downtime and part rework

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

and maintain sharpness through demanding mold-and-die cycles

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

The extended length reduces the need for multiple tools when milling deep cavities

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M42 x 1 NCDC Drill Chuck reducing downtime and part reworkThe 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