JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks built to finish holes to

built to finish holes to exact size in metalworking

Its straight shank and compact stub form deliver rigidity in tight spaces

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

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

smooth interior finishes

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks built to finish holes toThe 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