JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M3.5 x 0.35 ER Collet Chucks and the 300 mm gauge

and the 300 mm gauge length provides stable tool projection for deeper pockets and longer tools

while the fine-pitch design delivers consistent slot width and smooth finishes across batches

making it well-suited for repeated use on harder materials and demanding finishing tasks

This end mill combines precise diameter control

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M3.5 x 0.35 ER Collet Chucks and the 300 mm gaugeJBO Thread Plug Gauge Metric Fine Go No Go, Left Hand, 6H, M3. 5 x 0. 35 is a precision inspection tool designed for metric fine threads. It helps engineers, machinists, buyers, and hobbyists quickly verify threaded holes to ensure parts fit together cleanly and reliably. Designed for M3. 5 x 0. 35 metric fine threads with 6H tolerance, this gauge supports fast, repeatable checks that keep your workflow moving. Its Go No Go design lets you confirm