JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M75 x 2 Milling Cutter Arbors 16mm is an intermediate precision

16mm is an intermediate precision reamer designed to finish drilled holes to a precise size with a clean

Its 45 mm gauge length provides a dependable seating depth

enabling fast pass/fail decisions during inspections and helping parts meet required standards

and hobbyists tackling intricate molds

straight holes and smooth bore finishes

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M75 x 2 Milling Cutter Arbors 16mm is an intermediate precisionThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M75 x 2 is a precision inspection tool designed to verify external thread diameters on metric fine threaded components. Its ideal for engineers, technicians, machinists, quality control professionals, and DIY enthusiasts who need fast, reliable checks to confirm parts meet the right standard. The GO gauge provides a straightforward way to confirm conformance, supporting accurate, repeatable