JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 6G - M30 x 3.5 RPTECH while the standard-length taper shank

while the standard-length taper shank simplifies setup in existing toolposts and holders

the 4‑flute carbide design supports stable

Long shank with radius geometry for reach: The extended shank reaches deep pockets and tight spaces

high-quality bore finishes with less downtime

The HSS-E (M35 cobalt) substrate enhances wear resistance for demanding materials

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 6G - M30 x 3.5 RPTECH while the standard-length taper shankThe JBO Thread Plug Gauge is a precision tool designed for metric coarse threads, featuring Right Hand orientation, 6G tolerance, and M30 x 3. 5 size. Its Go No Go design enables quick, repeatable checks to verify hole threads meet standard dimensions. Built with a knurled body for secure grip and easy handling in busy shops, this gauge is crafted from hardened steel to withstand demanding use and provide long lasting accuracy. Go No Go Design for