JBO Thread Plug Gauge - BSF Go-No/Go - Right Hand - Medium Class - 3/8 x 20 4 Month Widin you can expect consistent bore

you can expect consistent bore quality across parts

005 mm) ensures final hole sizes stay within tight limits

Manufacturing & dispatch: Manufactured to order

This reamer delivers precise bore sizing and a high-quality surface finish suitable for fixtures

Finish holes to tight ISO H4 tolerances with repeatable results

JBO Thread Plug Gauge - BSF Go-No/Go - Right Hand - Medium Class - 3/8 x 20 4 Month Widin you can expect consistent boreThe JBO Thread Plug Gauge is a precision go no go tool designed to verify 3 8 x 20 BSF threaded holes with accuracy and speed. Built for engineers, machinists, inspectors, and maintenance teams, this Right Hand, Medium Class gauge helps confirm threads meet specification before assembly or tapping operations. With its two ends serving as quick pass fail indicators, it reduces guesswork, speeds setup, and helps prevent misfits and costly rework on the