JBO Thread Plug Gauge - Pg Go-No/Go - Right Hand - Pg 7 x 20 M&D 2-Flute Square End for Clean

2-Flute Square End for Clean

unambiguous pass/fail readings

consistent hole sizes with ISO H4 tolerance

That makes it a reliable choice when you need the precise size without waiting for generic stock

this gauge is built to withstand daily use in busy workshops and quality labs

JBO Thread Plug Gauge - Pg Go-No/Go - Right Hand - Pg 7 x 20 M&D 2-Flute Square End for CleanThe JBO Thread Plug Gauge is a precision go no go tool engineered to verify threaded holes quickly and reliably. With distinct go and no go ends and a comfortable knurled grip, its an essential inspection aid for machinists, quality teams, and shop technicians across manufacturing, automotive, and aerospace sectors. Sized Pg 7 x 20 with a right hand thread, this gauge helps confirm that holes meet Unified thread standards and specifications. The