JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M55 x 2 Face Mill Arbors - Through Coolant and faster setups thanks to

and faster setups thanks to the reliable taper shank and predictable performance

straight shank format uses intermediate precision (K10) carbide and a left-hand spiral flute with right-hand cutting to produce clean

it is produced to ISO H5 tolerance (-0 / +0

minimizing deflection during deep grooves and helping you maintain accurate depths and precise contours

and hobbyists who rely on consistent performance during many milling tasks

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M55 x 2 Face Mill Arbors - Through Coolant and faster setups thanks toThe JBO Thread Plug Gauge (GO) Metric Fine Right Hand 4H M55 x 2 is a precision go gauge designed to verify internal threads quickly and reliably. Its built for machinists, inspectors, and quality teams who need fast, confident Go No Go checks on threaded holes, ensuring they meet the exact M55 x 2 specification and 4H tolerance. Precise Metric Fine Go Gauge (M55 x 2, 4H): Enables rapid, accurate go no go verification of internal threads, delivering