JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6G - M9 x 1 Hydraulic Expansion Chucks it combines durability with strong

it combines durability with strong heat resistance for repetitive drilling operations

000 RPM for cleaner finishes

minimizing deflection in demanding setups

giving you the flexibility to tackle small details and larger cavities with a single tool

it delivers accurate hole finishing in metalworking projects

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6G - M9 x 1 Hydraulic Expansion Chucks it combines durability with strongThis JBO thread plug gauge provides a reliable way to inspect M9 x 1 metric fine left hand threads. Machinists, inspectors, and quality teams use it to confirm that internal threads meet the 6G tolerance before parts move to assembly, helping avoid fit issues in precision components. Go No Go Design: Lets you check thread acceptance in seconds by simply inserting each end, speeding up inspection without extra measuring equipment. Hardened Steel