JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks Go/No-Go quick checks: Instantly confirm

Go/No-Go quick checks: Instantly confirm hole acceptance with a simple pass/fail indication

Taper shank for secure mounting: Provides reliable alignment and quick

repeatable rib profiling with excellent surface finish on curved surfaces

This end mill holder is built to boost your workflow by delivering dependable clamping

Meet the Toolex Reamer: a straight shank

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks Go/No-Go quick checks: Instantly confirmThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, helping you verify threaded holes quickly and confidently. Built for engineers, machinists, quality inspectors, and shop environments, this left hand Go No Go gauge checks tolerance for M40 x 2 threads (6H) so parts mate smoothly on first assembly. Constructed from hardened steel, the gauge delivers dependable performance and stands up to daily use in demanding workshop