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Durable hardened steel construction: Designed for rugged use in demanding environments
The left-hand spiral flute design supports efficient chip evacuation and stable cutting
promoting alignment and reducing runout
Featuring a 100 mm gauge length
delivering superior surface quality and consistent dimensions
JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - 1/2 x 20 - Calibrated (DAkkS Calibration) G Durable hardened steel construction: DesignedThe 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
