JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6G - M6 x 1 FLH it ships within 24–48 hours

it ships within 24–48 hours to keep your project on schedule

Through-coolant delivery for cleaner cuts: Internal coolant channels improve chip evacuation and cooling

Overall length: 70 mm

built from high‑speed steel (M2) for reliable intermediate precision hole finishing

achieving just 5 microns of run-out to maximize concentricity and keep cutting tools aligned for tight tolerances

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6G - M6 x 1 FLH it ships within 24–48 hoursThe JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. Specifically calibrated for M6 x 1 left hand applications, this Go No Go gauge lets you quickly verify threaded holes for proper fit and function. The knurled, durable body provides a secure grip for accurate checks in busy workshops. Crafted from hardened steel, it stands up to frequent use in manufacturing, inspection, and maintenance, delivering consistent readings