The tool I want was purchased from Assenmacher many years ago. I am tred of borrowing my friends and the only one I see available is from SIR tools. the one from Assenmacher looks like it is much better in quality. The other is listed here:
http://www.vertexauto.com/ShowItem/4048%20...er%20Gauge.aspx
Anyone use this or know a better quality tool?