JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M52 x 1.5 Hex Key Drill Chuck making it a trusted choice

making it a trusted choice for precise internal diameters in production or repair work

long-lasting performance with consistent hole sizing across demanding machining tasks

Left-hand spiral flute with right-hand cutting: Optimizes chip control and cutting action for smooth reaming and easy withdrawal from the hole

reducing downtime and maintaining consistent performance in everyday mold/die work

accurate holes over many cycles

JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M52 x 1.5 Hex Key Drill Chuck making it a trusted choiceThe JBO Thread Plug Gauge (GO) is a precision instrument designed to quickly and reliably verify threaded holes. Specifically configured for metric fine threads, this left hand GO gauge checks M52 x 1. 5 holes to the 6H standard, helping quality teams and machinists confirm holes meet exact size and pitch requirements. Crafted from hardened steel, it delivers durable, long lasting performance in demanding shop environments. Precise metric fine GO