JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M56 x 2 FMH FLH FHH S&E A&NF M&D ISO H4 tolerance for precise

ISO H4 tolerance for precise holes: D = ISO H4 tolerance ensures tight dimensional control and a high-quality finish in finished holes

repeatable grip across a wide range of tooling applications

matched to ISO H7

Through coolant for cleaner cuts: Coolant is directed through the shank to the cutting edge

Carbide (k10) Stub-Length

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M56 x 2 FMH FLH FHH S&E A&NF M&D ISO H4 tolerance for preciseThe JBO Thread Ring Gauge (GO) Metric Fine, Right Hand, 4h, M56 x 2 is a precision inspection tool designed to verify external thread diameters to exact metric fine standards. Built for engineers, machinists, quality control teams, and workshop technicians, it provides fast, clear go no go feedback to confirm parts meet the M56 x 2 right hand thread specification. Precision GO gauge for fast, confident inspections: Enables quick pass fail checks of