JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 2A - No. 1 x 72 Morse Taper Adaptor Through-Coolant Hollow Design: Allows coolant

Through-Coolant Hollow Design: Allows coolant to flow through the centre

Left-hand spiral flute with right-hand cutting: Enables controlled material removal and efficient chip evacuation for clean

whether you’re prototyping or running higher‑volume manufacturing

from production shops to hobbyist workshops

Wide size range (2–16 mm) in one set: Includes 15 precision ER25 collets from 2 mm to 16 mm

JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 2A - No. 1 x 72 Morse Taper Adaptor Through-Coolant Hollow Design: Allows coolantThe JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external UNF threads. Designed for manufacturing, automotive, and aerospace environments, it is ideal for engineers, inspectors, machinists, and quality teams. It checks right hand UNF threads at size No. 1 x 72 and class 2A, with a No Go segment that clearly flags non conforming threads for fast, decisive quality control. Crafted from hardened steel, this gauge is built for daily use,