JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M3.5 x 0.25 NCDC Drill Chuck improving runout control and alignment

improving runout control and alignment across multiple jobs

maintaining hole accuracy and reducing the need for frequent tool changes in demanding materials

repeatable finishes with minimal setup adjustments

reducing regrinds

this reamer delivers cleaner bore finishes

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M3.5 x 0.25 NCDC Drill Chuck improving runout control and alignmentThe JBO Thread Plug Gauge is a precision tool engineered for metric fine threads. Designed for internal hole checks, it helps engineers, machinists, quality control professionals, and workshop hobbyists quickly verify that threads meet exact size and tolerance before assembly. Its Go No Go design provides fast, reliable pass fail results, so you can move parts through your workflow with confidence. Go No Go design: Enables fast, repeatable inspections