JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M18 x 1 Face Mill Arbors - Through Coolant it features a left-hand spiral

it features a left-hand spiral flute with right-hand cutting and through coolant to improve chip evacuation and cooling

and smoother project progression across a wide range of applications

Precise seating and alignment: Ensures consistent bore accuracy by minimizing runout and providing a stable interface between the boring bar and holder

The Toolex HSS-E Countersink with a 100° single-flute design is built to deliver precise

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M18 x 1 Face Mill Arbors - Through Coolant it features a left-hand spiralThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6h, M18 x 1 is a precision inspection tool designed to verify the maximum permissible size of external threads on fasteners and precision components. Its ideal for quality control teams, machinists, and engineers who need quick, reliable checks to confirm parts meet exacting specifications. Built to endure busy workshop environments, this hardened steel ring gauge delivers consistent results