JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M27 x 2 Tapping Chucks With its taper shank for

With its taper shank for secure mounting and its precision specification

20 mm nominal diameter and ISO H5 tolerance (-0 +

precise alignment in compact toolholders

and tight tolerance helps you achieve precise holes in a single finishing pass

including aluminum and mild steel

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M27 x 2 Tapping Chucks With its taper shank forThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, M27 x 2, 6g is a precision inspection tool designed to verify external thread diameters with speed and reliability. At about 6 g, it's a compact, easy to handle gauge for engineers, machinists, quality inspectors, and shop floor technicians who need to confirm that threads meet exact size and tolerance before assembly. Metric Fine M27 x 2 NoGo specification: Calibrated to the M27 x 2 fine