JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - No. 3 x 56 Face Mill Arbors - Through Coolant and carbon steel (WXE504)

and carbon steel (WXE504)

Built on HSS-E (M35 Cob) and finished with the AcuRea hard-surface coating

Sized for the OZ12 interface

and projects that require consistent

and deliver a consistent kerf across multiple passes

JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - No. 3 x 56 Face Mill Arbors - Through Coolant and carbon steel (WXE504)The JBO Thread Plug Gauge UNF Go No Go Left Hand 2B No. 3 x 56 is a precision inspection tool designed to quickly verify internal UNF threads. Its straightforward Go No Go design provides an immediate pass fail reading for threaded holes, helping you confirm conformance and keep production running smoothly in manufacturing, automotive, and aerospace settings. Go No Go quick verification: Enables fast, objective checks of threaded holes, reducing