JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M4.5 x 0.75 FHH and high-speed capability supports faster

and high-speed capability supports faster cycle times

repeatable hole sizes with a smooth finish thanks to carbide’s wear resistance

repeatable checks in busy workshops

Material: High-Speed Steel (M2) for durable wear resistance

predictable material removal and clean bore geometry in through-hole work

JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M4.5 x 0.75 FHH and high-speed capability supports fasterMeet the JBO Thread Ring Gauge (GO) for Metric Coarse threads. Designed for quality teams, machinists, engineers, and technicians, this Go gauge verifies external M4. 5 x 0. 75 coarse threads quickly and reliably, helping parts meet spec and ensure proper fit in assemblies across industries. Durable Hardened Steel Construction: Engineered for long tool life and wear resistance, maintaining precise Go gauge dimensions through repeated inspections in