Precision M4.5 X 0.75 Class 6g Solid-Design Thread Ring GO Gage - Industrial Quality Thread Measurement Tool for Machining, Manufacturing & Quality Control

Solid-Design Thread Ring Gage for inspecting the pitch diameter and functional thread for external threaded products. All gage members are marked with nominal size, class of fit and pitch diameters. All gage members are serialized and include a printed Long Form Certificate from an ISO 17025 Accredited Company.