JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - 3/4 x 16 FMH user-friendly inspections: Designed for straightforward

user-friendly inspections: Designed for straightforward handling and reliable readings

Material: Carbide for higher hardness and wear resistance

this GO gauge supports everyday use in workshops

and finishing tight corners where accuracy matters most

Carbide construction offers improved wear resistance and longer tool life

JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - 3/4 x 16 FMH user-friendly inspections: Designed for straightforwardThe JBO Thread Plug Gauge is a precision inspection tool designed to verify internal UNF threads quickly and reliably. It targets left hand 3 4 16 LH threads, providing a clear go no go check to confirm hole conformity and proper mating with fasteners. Ideal for manufacturing, automotive, and aerospace environments, it helps technicians, inspectors, and machinists ensure threads meet the 2B tolerance class with consistent results. Go No Go design for