JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 1.5 Hex Key Drill Chuck Material: Carbide construction delivers rigidity

Material: Carbide construction delivers rigidity and consistent precision

reliable confirmation that threaded holes meet specification

K10 intermediate precision carbide on a straight shank: Combines durability and rigidity for long tool life and steadier performance in demanding applications

smooth bore with tight control over size thanks to the ISO H5 tolerance and DIN 206-B geometry

Use it for finishing drilled holes in steel and alloy workpieces where consistent diameters and smooth finishes are essential

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 1.5 Hex Key Drill Chuck Material: Carbide construction delivers rigidityThe JBO Thread Ring Gauge (NoGo) Metric Fine, Left Hand, 6g, M56 x 1. 5 is a precision inspection tool designed to verify external metric threads quickly and reliably. Its ideal for machinists, quality inspectors, and assembly teams who need to confirm that threaded components meet exact size and tolerance requirements. The gauge features a knurled outer edge for a secure grip and a small red mark to aid orientation during setup. Built for everyday