JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M12 x 1.75 FMH The castle nut design provides

The castle nut design provides a secure

helping maintain hole size across multiple uses and reducing the need for rework

accurate finishes in finished components

Despatch is 24–48 hours from order

Applications: Suitable for precision hole enlarging and finishing across ferrous and non-ferrous materials

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M12 x 1.75 FMH The castle nut design providesThe JBO Thread Plug Gauge is a precision tool designed for metric coarse threadsspecifically M12 x 1. 75. This Right Hand, Go No Go gauge uses a 4H tolerance to quickly verify threaded holes and ensure proper component fitment. Built from hardened steel for durability, it stands up to daily workshop use and provides consistent, repeatable results. Go No Go quick verification: Streamlined inspection that immediately confirms whether a hole meets the