JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M16 x 1.5 ER Collet Chucks secure mounting in most collets

secure mounting in most collets and chucks

delivering faster material removal with a smoother finish and better chip evacuation

making it ideal for finishing holes to tight tolerances in engineering projects

and enduring wear resistance

helping you achieve clean corners and consistent geometry on complex molds and dies

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M16 x 1.5 ER Collet Chucks secure mounting in most colletsThe JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. This Left Hand version supports M16 x 1. 5 threads with a 6H internal tolerance, making it ideal for engineers, machinists, and maintenance technicians who need reliable hole checks in a variety of applications. Its Go No Go design enables quick, objective verification of threaded holes, helping you confirm fit and consistency across assemblies. Built for