JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - 5/16 x 24 Milling Cutter Arbors Chip-control geometry: left-hand spiral flute

Chip-control geometry: left-hand spiral flute with right-hand cutting: Optimized flute geometry promotes efficient chip evacuation

Built with HSS (M2) and a straight shank

the gauge follows a 2 x 11 configuration to support common BSP thread sizes

helping you achieve tighter tolerances and cleaner surfaces

delivering a smooth bore with minimal finishing required

JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - 5/16 x 24 Milling Cutter Arbors Chip-control geometry: left-hand spiral fluteThe JBO Thread Ring Gauge (GO) UNF Right Hand 3A 5 16 x 24 is a precision measurement tool designed to quickly verify external threaded diameters. Its ideal for manufacturers, machine shops, maintenance technicians, and QA teams that need fast, reliable checks on threaded components to confirm they meet exact size and fit requirements. Crafted from hardened steel with a durable finish, this GO gauge delivers dependable performance in demanding work