JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6G - M25 x 1 A&NF This reamer helps you finish

This reamer helps you finish holes to tight ISO tolerances with predictable results

Carbide-tipped for extended wear life: The K10 carbide tip resists wear and helps maintain bore size over many holes

Standard: DIN 212-B compatible geometry

The cobalt-enhanced HSS and spiral flute design help manage heat and chips

while the combination of left-hand flute and right-hand cutting supports efficient chip evacuation and stable finishing passes

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6G - M25 x 1 A&NF This reamer helps you finishThe JBO Thread Plug Gauge is a precision Go No Go tool designed for metric fine threads, helping you quickly verify that threaded holes meet exact standards. This left hand variant is ideal for shops and QA teams working with fine thread assemblies, including sizes like M25 x 1, ensuring reliable checks without guesswork. Built for daily use, the gauge features hardened steel construction that delivers long lasting wear resistance in busy work