JBO Thread Ring Gauge (NoGo) - UNJF - Right Hand - 3A - 7/8 x 14 Face Mill Arbors spiral-flute reamer in high-speed steel

spiral-flute reamer in high-speed steel (M2) designed for intermediate-precision hole finishing

it is sized at 5

Hardened Steel Durability: Built to withstand daily shop use and resist wear

speeding production and reducing touch-ups

By combining a robust taper shank

JBO Thread Ring Gauge (NoGo) - UNJF - Right Hand - 3A - 7/8 x 14 Face Mill Arbors spiral-flute reamer in high-speed steelThe JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external threads to the UNJF standard. Designed for engineers, machinists, quality inspectors, and assembly teams across manufacturing, automotive, and aerospace, it helps confirm that threaded components meet exact size and fit requirements. With a Right Hand orientation and a 7 8 x 14 size in the 3A class, this gauge delivers consistent checks that align with common industry threads.