JBO Thread Ring Gauge (NoGo) - UNJC - Right Hand - 3B - No. 4 x 40 Die & Mould Collet Chucks Smooth Contours with a Tapered

Smooth Contours with a Tapered Ball Nose: Delivers precise contouring

17 mm precision: ensures tight

The rib-processing design supports reliable performance

making it a dependable choice for finishing operations in engineering

while the left-hand spiral flute and right-hand cutting orientation optimize chip removal and surface finish

JBO Thread Ring Gauge (NoGo) - UNJC - Right Hand - 3B - No. 4 x 40 Die & Mould Collet Chucks Smooth Contours with a TaperedThe JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external thread diameters to UNJC standards. Its an essential instrument for manufacturing, automotive, and aerospace environments where quick, reliable thread checks matter. The NoGo design makes non conforming threads easy to spot, helping you prevent incorrect assemblies and reduce rework on the shop floor. Designed for right hand threads and sized as No. 4 x 40 with a 3B