JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - 1 3/8 x 12 Face Mill Arbors - Anti-Vibration By maintaining tight tolerances across

By maintaining tight tolerances across taps

Material: Premium carbide construction for durability

The AcuRea coating protects the tool against wear

and tool changes—whether you’re in a workshop

JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - 1 3/8 x 12 Face Mill Arbors - Anti-Vibration By maintaining tight tolerances acrossThe JBO Thread Plug Gauge UNF Go No Go Right Hand 3B 1 3 8 x 12 is a precision inspection tool designed to verify internal UNF threads quickly and reliably. Its essential for manufacturers, automotive shops, and aerospace maintenance teams that depend on accurate thread measurements to ensure proper fit and safe operation. Go No Go quick check: The go no go design provides immediate pass fail feedback on threaded holes, speeding inspections and