JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M21 x 1 End Mill Holders Taper shank in M2 HSS

Taper shank in M2 HSS (BS 328/4): provides a secure

Designed for professionals who demand dependable

reducing chatter and ensuring consistent reaming performance

Shank: Straight shank for easy grip and stable guidance

00mm is a high-precision cutting tool designed to bring pre-drilled holes to an exact size with a clean

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M21 x 1 End Mill Holders Taper shank in M2 HSSThe JBO Thread Ring Gauge (NoGo) is a precision inspection tool crafted for engineers, machinists, quality teams, and workshop technicians. It verifies external metric thread diameters for fine pitches, specifically M21 x 1 right hand threads in the 6g tolerance class, providing a clear NoGo check to confirm parts meet required standards. Designed to streamline quality control, it helps you quickly identify components that do not conform and prevent