JBO Plug Gauge - UNC (STI) Heli Coil Gauge - Right Hand - 2B - No. 12 x 24 - Calibrated (DAkkS Calibration) FMH When you need to enlarge

When you need to enlarge an existing hole or achieve a precisely finished diameter

The M2 HSS composition offers strong wear resistance while maintaining edge retention through repetitive reaming cycles

and long tool life for consistent performance

and a square-edge rib-focused profile delivers repeatable

This reamer is built for engineers

JBO Plug Gauge - UNC (STI) Heli Coil Gauge - Right Hand - 2B - No. 12 x 24 - Calibrated (DAkkS Calibration) FMH When you need to enlargeThe JBO Plug Gauge UNC (STI) Right Hand 2B No. 12 x 24 is a calibrated plug gauge designed to inspect UNC thread inserts (STIs). Built to ANSI ASME standards, it provides precise pitch diameter measurements to verify that inserts meet UNC STI specifications. Designed for manufacturing, automotive, and aerospace environments, this tool supports efficient QA checks, reduces rework, and helps maintain consistent performance across assemblies. DAkkS