JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M64 x 2 Face Mill Arbors it features a straight shank

it features a straight shank and a left‑hand spiral flute for stable

repeatable seating for repeatable results

Precise DIM and compatible geometry: DIN 8093 / ISO H4 tolerance in a stub-length

The straight shank simplifies mounting in common chucks and collets

and reduce downtime during long runs

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M64 x 2 Face Mill Arbors it features a straight shankThe JBO Thread Plug Gauge (GO) Metric Fine, Right Hand, 6H, M64 x 2 is a precision go no go tool used to quickly verify internal threads in holes. Its designed for engineers, quality inspectors, machinists, and technicians who need reliable, repeatable checks to confirm holes meet exact M64 x 2 specifications. Crafted from hardened steel, this gauge delivers long lasting performance in demanding work environments. Its knurled grip and simple Go side