JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M25 x 1.5 Boring Bar Blank while the straight shank and

while the straight shank and standardized DIN interface simplify setup and repeatable results in production environments

and extended tool life for long machining runs

Its left-hand spiral flute with right-hand cutting delivers smooth bore finishing in a single pass

repeatable cuts on narrow rib features with confidence and ease

5 Micron Run-Out: Provides exceptional concentricity for tighter tolerances

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M25 x 1.5 Boring Bar Blank while the straight shank andThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M25 x 1. 5 is a precision inspection tool designed to verify external thread diameters and pitches. Its ideal for engineers, machinists, quality inspectors, and shop floor teams who need fast, reliable checks to ensure components conform to the M25 x 1. 5 metric fine standard. Manufactured from hardened steel, this GO ring gauge delivers durability and long service life in busy workshops. The