JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M3.5 x 0.6 S&E while the ISO H5 tolerance

while the ISO H5 tolerance helps you achieve tight fits and repeatable results

ISO H5 tolerance and defined size: Ensures precise hole size you can trust in critical assemblies and repeatable production runs

accurate holes with clean finishes

this cutter is suitable for materials up to 55 HRc

Shank: Straight shank for compatible mounting in standard reaming setups

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M3.5 x 0.6 S&E while the ISO H5 toleranceThe JBO Thread Plug Gauge is a precision inspection tool engineered for metric coarse threads. Its specifically matched to M3. 5 x 0. 6 coarse threads, making it ideal for engineers, machinists, quality inspectors, buyers, tradespeople, and hobbyists who need fast, reliable hole checks and consistent thread verification. With a Go No Go design, this gauge delivers quick pass fail assessments of threaded holes, helping you confirm fits and reduce the