JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks 5-micron run-out for superb concentricity:

5-micron run-out for superb concentricity: Ensures the tool is held with near-perfect alignment

and serious hobbyist work

Durable HSS (M2) construction: Built for longevity and reliable performance across a range of metals

5 tolerance reduces runout

Coating: TiAlN coating provides increased hardness

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks 5-micron run-out for superb concentricity:The JBO Thread Plug Gauge (NoGo) Metric Fine Left Hand 6H M56 x 1. 5 is a precision inspection tool designed to verify metric fine threaded holes. Ideal for machinists, inspectors, manufacturers, and maintenance professionals, it helps you confirm hole size quickly and with confidence to keep parts within specification. Metric Fine precision for M56 x 1. 5, 6H: Calibrated for metric fine threads, enabling accurate NoGo checks of threaded holes to the