Howard; If I understand your question correctly you are asking how thick will = the copper be in a plated-through hole on a PCB. That will only be about = 1 mil (0.001") thick. But I would suggest you just specify the diameter of the finished hole = and let the board shop select the drill size. Regards, Glen -----Original Message----- From: Howard McGinnis [mailto:mcginnis@E-VISIONS.COM] Sent: Wednesday, March 05, 2003 8:02 PM To: PICLIST@MITVMA.MIT.EDU Subject: [PICLIST] [OT]: Eagle Question re Drill size I'm creating a part for a TDK DC to DC converter that has 0.04 inch diameter pins. In selecting the drill size, what allowance should I make for the eyelet thickness? Thanks, Howard Howard McGinnis Electronic Visions, Inc. mcginnis@e-visions.com www.e-visions.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.