JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M12 x 0.75 Tapping Chucks making it a reliable choice

making it a reliable choice for machinists who demand consistent accuracy in metalworking and fabrication

The straight shank and precise tolerance enable drop‑in compatibility with existing setups

ready to perform at your workshop or production line

enabling a single chuck to handle a broad mix of tools and materials and reduce tool changes

helping you achieve accurate diameters and clean finishes in fewer passes

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M12 x 0.75 Tapping Chucks making it a reliable choiceThe JBO Thread Plug Gauge is a precision tool designed to verify metric fine thread holes with confidence. Built for M12 x 0. 75 threads and Right Hand operation in 4H tolerance, its ideal for engineers, machinists, and assembly specialists who depend on accurate hole sizing. The Go No Go design lets you perform fast, definitive checks of threaded holesensuring parts assemble correctly the first time. Crafted for durability, this plug gauge uses