JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - No. 4 x 48 - Calibrated (DAkkS Calibration) Hydraulic Expansion Chucks Type E4 collet chucks are

Type E4 collet chucks are available in different sizes and tapers to fit different machine spindles and tool shanks

you can expect a tailored reamer delivered within 24–48 hours

Coating: DLC (Diamond-Like Carbon) coating with rainbow/iridescent finish

simplifying tooling needs and reducing the need to stock multiple inserts

JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - No. 4 x 48 - Calibrated (DAkkS Calibration) Hydraulic Expansion Chucks Type E4 collet chucks areThe JBO Plug Gauge UNF (STI) Helicoil Gauge is a precision, calibrated tool for inspecting UNF STI threaded inserts. Built as a right hand gauge with 2B tolerance and No. 4 x 48 length, it delivers consistent go no go verification in demanding manufacturing environments. Calibrated with DAkkS traceability, it provides reliable measurements for quality control and audits. Manufactured and assessed in accordance with ANSI standards by the American