JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M18 x 2 Endmill25 while the left-hand spiral flute

while the left-hand spiral flute with right-hand cutting promotes efficient chip evacuation and smooth cutting in deeper holes

Whether you’re producing high-precision parts in a shop or tackling intricate

smooth balance at high speeds

Left-hand spiral flute with right-hand cutting: Optimized geometry for smooth operation

aiding consistency in your production workflow and minimizing rework

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M18 x 2 Endmill25 while the left-hand spiral fluteThe JBO Thread Plug Gauge is a precision Go No Go tool designed for metric fine threads. Built for M18 x 2 right hand threads with a 6H tolerance, it helps machinists, engineers, and quality inspectors quickly verify that threaded holes meet exact specifications without guesswork. Constructed with hardened steel and a textured knurled body for secure handling, this plug gauge delivers dependable performance in busy workshop environments. Its Go No Go