JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M58 x 1.5 M&D delivering longer tool life in

delivering longer tool life in mold/die work below 55 HRc and with pre‑hardened

it uses a left-hand spiral flute and right-hand cutting to produce smooth

This intermediate-precision HSS (M2) reamer uses a taper shank for secure toolholding and a left-hand spiral flute with right-hand cutting for clean

and strict tolerance alignment means faster setup

repeatable bore finishes across common machine shop materials

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M58 x 1.5 M&D delivering longer tool life inThe JBO Thread Plug Gauge (GO) Metric Fine Right Hand 4H M58 x 1. 5 is a precision inspection tool designed to verify threaded holes to exact metric fine specifications. Its ideal for engineers, machinists, quality teams, and workshop technicians who need fast, reliable go no go checks to maintain dimensional accuracy. Exact M58 x 1. 5 (Metric Fine) GO gauge: Quickly verify threaded holes accept the GO gauge, ensuring the hole meets the M58 x 1. 5