ON 20110722@8:35:14 AM at page: On a web page you were interested in at: http://techref.massmind.org/Techref/metals.htm#40746.3578009259 James Newton[JMN-EFP-786] Says /techref/taps.htm Tapping holes in metal ON 20110722@8:35:55 AM at page: On a web page you were interested in at: http://techref.massmind.org/Techref/taps.htm#40644.5677083333 James Newton[JMN-EFP-786] published post 40644.5677083333 http://drillsandcutters.com/taps.aspx Drills and Cutters has some hard to find taps and other special sizes. ON 20110725@9:51:31 AM at page: On a web page you were interested in at: http://techref.massmind.org/Techref/inductor.htm#40749.410775463 James Newton[JMN-EFP-786] See also: http://ludens.cl/Electron/Magnet.html How to design electromagnetic parts ON 20110725@9:52:41 AM at page: On a web page you were interested in at: http://techref.massmind.org/Techref/inductor.htm#40749.4115740741 James Newton[JMN-EFP-786] See also: http://ludens.cl/Electron/trafos/trafos.html Practical transformer winding.