JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M30 x 2 FLH Taper shank with ISO H5

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

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

5 mm cutting diameter for tight pockets and fine-detail work

The straight shank supports broad compatibility with standard holders

reducing deflection and helping you maintain precise geometry on inclined surfaces

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M30 x 2 FLH Taper shank with ISO H5The 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