JBO Thread Ring Gauge (GO) - UNEF - Left Hand - 2A - 1/4 x 32 Face Mill Arbors - Through Coolant built from HSS-E (M35 Cob)

built from HSS-E (M35 Cob) and finished with the AcuRea multi-layer nano chrome coating at 8

repeatable cuts with minimal resistance

Carbide-tipped construction: extended wear resistance with stable

Carbide-tipped construction for long wear life: The K10 carbide tip delivers exceptional hardness and wear resistance

46 mm tool delivers controlled material removal and a smooth bore

JBO Thread Ring Gauge (GO) - UNEF - Left Hand - 2A - 1/4 x 32 Face Mill Arbors - Through Coolant built from HSS-E (M35 Cob)The JBO Thread Ring Gauge (GO) for UNEF, Left Hand, 2A in the 1 4 x 32 size is a precision tool designed to verify external threads quickly and reliably. Its ideal for engineers, machinists, inspectors, buyers, and hobbyists who need to confirm that threaded components meet UNEF standards with confidence. Hardened steel construction: Built to withstand daily use in busy shops with excellent wear resistance, providing long lasting, repeatable