JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M30 x 2 FLH The straight shank supports broad

The straight shank supports broad compatibility with standard holders

and its compact 100 mm gauge length keeps tool overhang tight for excellent rigidity in tight work envelopes

Taper shank with ISO H5 tolerance: Secure mounting and repeatable alignment in standard tool holders

Left-hand spiral flute with straight shank (stub length): Improves chip evacuation and provides a rigid

while the M2 high-speed steel resists wear for longer service life—making this reamer a dependable choice for demanding drilling

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M30 x 2 FLH The straight shank supports broadThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M30 x 2 is a precision tool designed to verify external thread diameters on fasteners, fittings, and machined components. It provides quick, reliable go no go checks to confirm parts meet the required thread standards without guesswork, specifically tuned for left hand metric fine threads. Fast go no go verification for quick inspections: Quickly confirms whether the external thread diameter