This VERMONT GAGE 301129540 Go/No Go Plug Gage Assy is designed to calibrate measuring equipment or to gage parts directly. It has a chrome plated finish of 70/72 Rc, and a length of 1/2" for the go gauge and 5/16" for the no-go gauge. The overall length is 2-3/4". This plug gage is made of tool steel, with a 2B class and thread size of 5/16"-18. The VERMONT GAGE 301129540 Go/No Go Plug Gage Assy will be your go-to product when it comes to calibration work.. This item has been restricted from sale in the following state (s): []