JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M12 x 0.5 M&D reducing the need to switch

reducing the need to switch tools for different materials

consistent hole finishes with reduced chatter

smooth cutting for accurate hole finishes in a variety of materials

Carbide-tipped for long tool life: The carbide tip provides exceptional wear resistance

built from high-speed steel (M2) for intermediate-precision finishing

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M12 x 0.5 M&D reducing the need to switchThe JBO Thread Plug Gauge is a precision inspection tool designed to verify internal metric fine thread holes. Optimized for M12 x 0. 5 with right hand threading and 4H tolerance, this Go No Go gauge helps you confirm thread fit quickly before parts proceed to assembly or final QC. Constructed from hardened steel for long lasting wear resistance, it maintains accuracy even in busy workshop environments. The Go No Go design lets you perform fast,