JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M55 x 1.5 FMH FLH FHH S&E A&NF M&D and fabricators who demand repeatable

and fabricators who demand repeatable hole quality

and confident pass/fail decisions for every part

compact profile

The hand reamer delivers a controlled finish to drilled holes

275 mm in diameter for tight-tolerance applications

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M55 x 1.5 FMH FLH FHH S&E A&NF M&D and fabricators who demand repeatableThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6e, M55 x 1. 5 is a precision inspection tool designed to verify external thread diameters on fasteners and machined parts. Its ideal for engineers, buyers, tradespeople, hobbyists, and quality teams, helping you confirm that components meet the required thread size and pitch before assembly. This NoGo gauge provides a straightforward pass fail reference for critical threaded components. Built