JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 5 x 44 Endmill25 Designed to handle M3 to

Designed to handle M3 to M16 tapping tools

rigid form and multi-flute design deliver steady performance in tight spaces

Hardened Steel with Knurled Grip: Built for longevity and reliability

6h Metric Fine Fit: Precisely matched to standard right-hand threads and the 6h tolerance

Its straight shank fits standard toolholders and aligns with common milling and drilling setups

JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 5 x 44 Endmill25 Designed to handle M3 toThe JBO Thread Plug Gauge is a precision inspection tool designed to quickly verify UNF threaded holes. Ideal for manufacturers, assemblers, and maintenance teams across automotive, aerospace, and general engineering, it helps ensure that internal threads meet Unified standards with reliable, repeatable results. This right hand, 3B class gauge is sized No. 5 x 44, making it a focused solution for common UNF hole inspections and fitment checks. Go No