JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M78 x 1.5 ER Collet Chucks and supports machining hardened materials

and supports machining hardened materials up to HRc70 for longer tool life

This DV40 chuck combines fast setup

not finished tools held in inventory

Precise DIN 8051 B / ISO H5 tolerance: Delivers repeatable

JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M78 x 1.5 ER Collet Chucks and supports machining hardened materialsThe JBO Thread Plug Gauge (GO) in Metric Fine, Left Hand, 6H for M78 x 1. 5 is a precision inspection tool designed to quickly and reliably verify threaded holes. Its ideal for engineers, machinists, quality teams, and shop floor technicians who need to confirm metric left hand threads meet exact standards during assembly, machining, or quality checks. Crafted from hardened steel, this GO gauge delivers durable, wear resistant performance in demanding