JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 1 Face Mill Arbors - Through Coolant accurate holes when used with

accurate holes when used with standard hand reaming setups

radius-edge design with R0

supports smooth cutting action

and daily handling

Its robust HSS construction and standard taper shank offer dependable performance across multiple jobs and machines

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 1 Face Mill Arbors - Through Coolant accurate holes when used withThe JBO Thread Ring Gauge (NoGo) Metric Fine, Left Hand, M56 x 1, 6g is a precision inspection tool designed to verify external thread diameters with clarity and speed. Ideal for engineers, machinists, quality teams, and workshop technicians, it provides a straightforward Go NoGo check to confirm components meet your specifications. Crafted from hardened steel, this gauge delivers durable performance in busy environments. Its robust construction