JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M39 x 2 Morse Taper Adaptor while the TiN coating minimizes

while the TiN coating minimizes friction for smoother finishes and longer tool life

Shank/Size: 12 mm shank designed for compatibility with standard CNC tool holders

When installing

Built for durability with M2 HSS

enabling precise bore finishing

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M39 x 2 Morse Taper Adaptor while the TiN coating minimizesThe JBO Thread Plug Gauge is a precision inspection tool designed to verify metric fine threaded holes. Built for machinists, quality inspectors, and assembly specialists, it provides fast, reliable go no go checks to ensure components thread together cleanly and consistently. With a compact, rugged design and hardened steel construction, this gauge stands up to daily use in workshops, manufacturing floors, and job sites where accurate thread