JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M55 x 1 Face Mill Arbors - Anti-Vibration precise hole finishing across a

precise hole finishing across a range of materials

Application: Optimized for production cutting and arduous machining tasks

reducing inspection time and training effort

Tight tolerance for repeatable holes: DIN 212-B tolerance D = 0 + 0

DIN 212‑B / ISO H5 tolerance: Delivers precise hole size with easy mounting in standard collets and holders

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M55 x 1 Face Mill Arbors - Anti-Vibration precise hole finishing across aThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M55 x 1 is a precision go no go tool designed to verify external thread diameters quickly and reliably. Ideal for inspectors, machinists, and quality teams across manufacturing, automotive, and precision engineering, it helps you confirm that threaded components meet exact size and pitch requirements for metric fine threads, including left hand applications. Crafted from hardened steel, this