JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M38 x 1 ER Collet Chucks Engineered for performance in demanding

Engineered for performance in demanding environments

ISO H5 tolerance with DIN 212 B‑style geometry for precise holes: Delivers tight

leveraging graphite’s self-lubricating properties to reduce build-up and improve finish

Hard-wearing carbide with advanced coating for demanding materials: Designed to cut hard materials up to HRc70

merged with a 4-flute tapered neck to deliver stable

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M38 x 1 ER Collet Chucks Engineered for performance in demandingThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 4h M38 x 1 is a precision external thread gauge used to verify that components meet exact thread diameter and pitch specifications. Designed for go no go inspection, it helps technicians quickly determine whether a threaded part passes the required standard and can be safely mated with corresponding fasteners. Ideal for engineers, machinists, quality control teams, buyers, tradespeople, and