JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M20 x 2.5 Face Mill Arbors - Anti-Vibration Equipped with a standard 6

Equipped with a standard 6 mm shank

Finish: Bright finish for clear visibility and easy inspection

The combination of precise ISO H5 sizing

This approach guarantees you receive a tool tailored to your specifications

It combines a left-hand spiral flute with right-hand cutting to deliver controlled material removal and reliable bore sizing

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M20 x 2.5 Face Mill Arbors - Anti-Vibration Equipped with a standard 6The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads, specifically M20 x 2. 5. This left hand go no go gauge helps technicians, machinists, and maintenance staff quickly verify threaded holes for proper fitment. Built for professional environments, it supports consistent quality in manufacturing and repair tasks. Designed for left hand M20 x 2. 5 coarse threads, this Go No Go gauge delivers fast, clear pass fail