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Its robust build and clear Go reading support reliable
80 mm diameter and standard HSS (M2) construction
even when working with hardened materials up to HRc70
2-flute design with tapered neck: Minimizes vibration and chattering for smoother cuts and longer tool life in demanding materials and tight tolerances
adjustable castle-nut connection: Quick
JBO Thread Ring Gauge (GO) - UNF - Left Hand - 2A - No. 4 x 48 RPTECH Its robust build and clearThe JBO Thread Ring Gauge (GO) UNF Left Hand 2A No. 4 x 48 is a purpose built go gauge designed to verify external UNF lefthand threads. It helps machinists, inspectors, and quality teams quickly determine whether a threaded component meets the required minimum diameter, making QC checks straightforward and reliable. Crafted from hardened steel, this gauge offers exceptional wear resistance and long term durability in busy workshop environments. The
