JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M25 x 2 Power Milling Chucks helps you achieve accurate corners

helps you achieve accurate corners

The left‑hand spiral flute helps evacuate chips in deeper holes

repeatable machining

Carbide tooling delivers higher cutting speeds and feeds compared with high-speed steel

ready‑to‑use bores

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M25 x 2 Power Milling Chucks helps you achieve accurate cornersThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, built to help engineers, machinists, and inspectors verify hole compatibility with confidence. Its ideal for workholding, mating parts, and production settings where exact thread engagement matters, including applications using M25 x 2 threads (4H tolerance). The Go No Go design enables fast, direct checks so you can move projects forward without guesswork. Go No Go design