JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - No. 5 x 40 Die & Mould Collet Chucks is a high-precision HSS-E reamer

is a high-precision HSS-E reamer designed for finishing holes to tight tolerances

With its carbide composition and strict tolerances

The square-edge geometry produces clean

improving part fit and reducing stress concentrations

005 mm) with durable wear resistance for long service life and dependable interchangeability

JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - No. 5 x 40 Die & Mould Collet Chucks is a high-precision HSS-E reamerThe JBO Thread Plug Gauge is a precision inspection tool for verifying UNC threaded holes. Designed for engineers, machinists, quality inspectors, and technicians across manufacturing, automotive, and aerospace sectors, it helps confirm that holes meet Unified Thread Standard requirements. In a compact righthand 2B gauge sized No. 5 x 40, it delivers quick, reliable go no go checks that support proper fitment and repeatable results. Go No Go quick