JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M85 x 2 NCDC Drill Chuck and dedicated reaming operations

and dedicated reaming operations

accurate through-holes and reliable repeatability in both production and workshop environments

it relates to blanks ready to be manufactured into the finished reamer

with a secure fit in your taper shank tooling and a clear path from setup to finished work

It features a 12 mm bore and a 63 mm gauge length

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M85 x 2 NCDC Drill Chuck and dedicated reaming operationsThe JBO Thread Ring Gauge (GO) Metric Fine, Left Hand, 6g, M85 x 2 is a precision inspection tool used to verify external thread diameters. Its designed for engineers, machinists, quality control professionals, and workshop teams who need fast, reliable conformance checks for metric fine threads. Crafted from hardened steel for exceptional wear resistance, this GO gauge maintains accuracy in demanding environments. Its left hand configuration ensures