JBO Thread Ring Gauge (GO) - Pg - Right Hand - Pg 16 x 18 FMH FLH FHH S&E A&NF M&D straight‑shank reamer with a spiral

straight‑shank reamer with a spiral flute

Built from high-speed steel (M2) and finished to ISO H5 tolerance

this reamer helps you finish holes with minimal rework

while the long neck enables access to deeper features without compromising stability

and through coolant

JBO Thread Ring Gauge (GO) - Pg - Right Hand - Pg 16 x 18 FMH FLH FHH S&E A&NF M&D straight‑shank reamer with a spiralThe JBO Thread Ring Gauge (GO) Pg, Right Hand, Pg 16 x 18 is a precision tool designed to quickly verify external thread diameters. It serves as a reliable go no go reference for quality control, inspection, and assembly workflows, helping ensure threaded parts meet required standards with clear, decisive feedback. Crafted from hardened steel, this GO gauge offers exceptional wear resistance and durable performance in demanding shop environments. Its