JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M12 x 1 Boring Bar Blank This intermediate precision HSS (M2)

This intermediate precision HSS (M2) straight shank reamer is sized at 18

Coolant-sealed design with non-overlapping slots: The longitudinal slots do not overlap at the centre

The DIN 8089 standard aligns with common reaming procedures

Its carbide composition and defined flute geometry provide durable performance

Metric fine thread precision (M18 x 2

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M12 x 1 Boring Bar Blank This intermediate precision HSS (M2)The JBO Thread Plug Gauge is a precision Go No Go inspection tool designed for metric fine threads. Specifically engineered for M12 x 1 right hand threads with 6H tolerance, it helps ensure threaded holes meet exact specifications during manufacturing, assembly, and quality control. Crafted from hardened steel and finished with a knurled, non slip body, this gauge delivers durable, long lasting performance in busy workshops while providing consistent