JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - 1/2 x 20 - Calibrated (DAkkS Calibration) G Model: 158116—reliable

Model: 158116—reliable

delivering superior surface quality and consistent dimensions

Featuring a 100 mm gauge length

reliable fits into common tool holders

HSS-E (M35 cobalt) material: Provides superior wear resistance and longer tool life on tough metals

JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - 1/2 x 20 - Calibrated (DAkkS Calibration) G Model: 158116—reliableThe JBO UNF (STI) Helicoil Plug Gauge is a precision measurement tool designed to verify UNF 1 2 x 20 threaded Helicoil inserts (STIs). Its ideal for manufacturing, automotive, and aerospace quality teams that fast, reliable pitch diameter checks to ensure inserts fit correctly in assemblies. This right hand gauge is calibrated to 2B and DAkkS traceable, aligning with ANSI ASME thread standards for consistent, repeatable results. DAkkS calibrated