JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - No. 1 x 72 G smooth hole finish with consistent

smooth hole finish with consistent bore sizes across batches

and the stock note refers to blanks ready to be machined into the reamer you need

Radius: Corner radius R0

versatile design: The 50 mm diameter and 100 mm length provide a low-profile

wear-resistant reaming for reliable hole size and long tool life in demanding applications

JBO Thread Plug Gauge - UNF Go-No/Go - Left Hand - 2B - No. 1 x 72 G smooth hole finish with consistentThe JBO Thread Plug Gauge is a precision inspection tool designed to verify UNF (Unified Fine) threaded holes with a clear go no go signal. It is ideal for manufacturers, automotive shops, aerospace QC labs, and maintenance technicians who need fast, repeatable checks to ensure holes meet the required UNF standard and will properly accept the mating fastener. The left hand configuration targets reverse threaded components, ensuring you inspect the