JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M40 x 1 Face Mill Arbors - Anti-Vibration HSS (M2) tool built for

HSS (M2) tool built for reliability and consistent diameter control

Left-Hand Spiral Flute with Right-Hand Cutting: Delivers efficient chip control and a smooth

The AcuRea coating enhances wear resistance and heat durability

while DIN 8093 compatibility and ISO H4 tolerance ensure reliable

Finish & quality: Premium metric tooling designed for reliable performance in metalworking setups

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M40 x 1 Face Mill Arbors - Anti-Vibration HSS (M2) tool built forThe JBO Thread Plug Gauge is a precision tool designed to verify metric fine threaded holes with speed and confidence. It's a practical choice for engineers, buyers, tradespeople, hobbyists, and anyone working with metric threads who needs reliable, quick checks during assembly or maintenance. Configured for Right Hand threads with a M40 x 1 size and 4H tolerance, this Go No Go gauge delivers consistent results in busy workshops. Its knurled body and