> Dave, about, > > "Roy, > > ckeck my math but . > > 1 mm = 1/254 inch = 0.0039370 inch A useful approximation is that 1mm = 40 thou. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm