JBO Thread Ring Gauge (GO) - UNS - Right Hand - 2A - 1 3/4 x 12 Face Mill Arbors - Through Coolant An intermediate precision HSS straight

An intermediate precision HSS straight shank reamer designed for accurate hole finishing

17mm is a straight-shank carbide reamer sized for precise finishing of small-diameter holes

Designed for machinists requiring consistent hole finish and precise size

while the ergonomic design makes it comfortable to use for extended sessions

JBO Thread Ring Gauge (GO) - UNS - Right Hand - 2A - 1 3/4 x 12 Face Mill Arbors - Through Coolant An intermediate precision HSS straightThe JBO Thread Ring Gauge (GO) UNS Right Hand 2A 1 3 4 x 12 is a precision inspection tool designed to verify external thread diameters across industries. It enables quick, reliable checks to confirm parts conform to the required UNS 2A righthand thread standards, supporting quality control and accurate assembly. Crafted from hardened steel, this GO gauge delivers durability and wear resistance in busy workshops, production lines, and field