JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks Coating: Uncoated surface finish to

Coating: Uncoated surface finish to promote better chip flow and reduce friction

smooth interior finishes

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

Coating: TiAlN coating provides increased hardness

cleaner bore surfaces

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M56 x 1.5 Power Milling Chucks Coating: Uncoated surface finish 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