JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M42 x 1.5 Die & Mould Collet Chucks This reamer supports precise bore

This reamer supports precise bore finishing by combining a taper shank for secure tool mounting with intermediate precision HSS material

helping to minimize rework and ensure part-to-part consistency

The M2 high-speed steel composition provides reliable wear resistance for repeated use

repeatable bore dimensions that meet ISO H5 specifications for quality control

this end mill offers flexibility for deep groove applications and demanding molding tasks

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M42 x 1.5 Die & Mould Collet Chucks This reamer supports precise boreThe JBO Thread Plug Gauge (GO) is a precision tool designed to verify threaded holes with metric fine threads. It is ideal for machinists, inspectors, and maintenance teams who need fast, reliable go checks to confirm holes meet the M42 x 1. 5 specification and 4H tolerance. With its right hand threading, it integrates seamlessly into standard inspection routines. Constructed from hardened steel, this GO gauge delivers outstanding wear resistance and