JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M9 x 0.5 Boring Bar Blank The carbide construction delivers durability

The carbide construction delivers durability for repeated use across a range of metals

and right-hand cutting to deliver controlled material removal and reliable hole finishing

It is specified for M56 x 1

while the engineered flute geometry aids efficient chip evacuation for cleaner finishes in a variety of metals

The straight shank ensures compatibility with common toolholding and machining setups

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M9 x 0.5 Boring Bar Blank The carbide construction delivers durabilityThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M9 x 0. 5 is a precision inspection tool designed to verify external threads against metric fine standards. Its ideal for machinists, quality control professionals, engineers, and workshop technicians who need fast, reliable pass fail checks to confirm parts meet specifications and ensure proper thread engagement. Crafted from hardened steel, this ring gauge is built to withstand daily shop