JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M39 x 0.5 FHH The straight shank provides stable

The straight shank provides stable mounting in common toolholders

this intermediate-grade reamer maintains tight tolerances to ISO H5

while ISO H5 tolerance keeps holes within precise limits

Applications: Ideal for enlarging existing holes and achieving tight tolerances across a variety of materials and machining scenarios

and consistent results in fixtures

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M39 x 0.5 FHH The straight shank provides stableThe JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Specifically tuned for M39 x 0. 5, this right hand Go No Go gauge is ideal for engineers, machinists, and quality inspectors who need fast, confident checks of threaded holes. Built for daily workshop use, it features a rugged knurled body and durable ends that stand up to regular handling. The Go No Go design lets you verify both the minimum and maximum thread