JBO Thread Ring Gauge (GO) - UNJC - Right Hand - 3B - No. 2 x 56 Hydraulic Expansion Chucks The six-flute stub geometry promotes

The six-flute stub geometry promotes efficient swarf removal and stability in alignment

maintaining accuracy through heavy use and frequent handling

and better surface finishes even when machining hardened materials

it provides durable performance and secure mounting in standard toolholders

Designed for finishing holes with tight size control

JBO Thread Ring Gauge (GO) - UNJC - Right Hand - 3B - No. 2 x 56 Hydraulic Expansion Chucks The six-flute stub geometry promotesThe JBO Thread Ring Gauge (GO) UNJC Right Hand 3B No. 2 x 56 is a precision inspection tool designed to verify external thread diameters to UNJC standards. It's ideal for engineers, machinists, quality inspectors, and workshop technicians who need fast, reliable confirmation that threaded components will fit and perform as intended. Constructed from hardened steel, this gauge resists wear in demanding environments to deliver long lasting, consistent