JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M21 x 1 4 Month Widin Coating: TiAlN (Titanium Aluminium Nitride)

Coating: TiAlN (Titanium Aluminium Nitride) for enhanced hardness

reducing rework and enabling steady workflow across production runs

improving part fidelity and workflow efficiency

it delivers straightforward pass/fail feedback that speeds inspection workflows and reduces guesswork during assembly

The right-hand cutting action paired with a left-hand spiral flute provides stable chip evacuation and steady cutting

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M21 x 1 4 Month Widin Coating: TiAlN (Titanium Aluminium Nitride)The JBO Thread Plug Gauge is a precision tool designed for metric fine threads. Its Go No Go design lets you quickly verify hole acceptance, helping ensure parts thread together Cleanly and reliably. Ideal for machinists, quality control teams, assembly technicians, and hobbyists working with metric threads, this gauge speeds inspection without sacrificing accuracy. Go No Go Quick Checks for Fast, Confident Acceptance: Clearly defined Go and No Go