JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M55 x 1.5 FMH FLH FHH S&E A&NF M&D 275 mm in diameter for

275 mm in diameter for tight-tolerance applications

Go/No-Go design for fast hole validation: Quickly determine whether a threaded hole meets the M38 x 1

ER16 grip and concentricity: ER collet system delivers strong clamping force and tight runout control

and consistent profiles—from prototype runs to production batches

83 mm nominal bore and finished to ISO H5 tolerance (DIN 8051 B)

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M55 x 1.5 FMH FLH FHH S&E A&NF M&D 275 mm in diameter forThe 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