JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M142 x 1.5 Face Mill Arbors - Through Coolant Straight shank and DIN 212‑B

Straight shank and DIN 212‑B tolerance for precision: The straight shank supports secure seating in standard chucks and collets

enabling deeper passes and steadier feeds that produce uniform radii

22 mm diameter delivers consistent finishes and tight control over hole tolerances

The Omega BT50 ER Collet Chuck is a precision tool holder engineered for BT50 spindle systems and compatible with ER25 tooling

Durable HSS (M2) construction with a straight shank: Built for longevity and secure chucking in hand tools

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M142 x 1.5 Face Mill Arbors - Through Coolant Straight shank and DIN 212‑BThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6g M142 x 1. 5 is a precision tool designed to verify external metric fine threads with confidence. Its ideal for engineers, machinists, quality control professionals, and workshop operators who need fast, reliable go no go verification of threaded components. This GO gauge helps confirm that parts meet the M142 x 1. 5 thread standard, supporting accurate fits and consistent assemblies across