Mil Std 55110 section A.3.5.4 requires that a board's hole pattern accuracy be verified. Our test is very labor intensive. We would like to know how everyone else performs this test. Also, many master drawings require very close tolerances on finished board X-Y dimension. Our machine that removes the route tab sometimes leaves a small stub. Our mechanics then sand the edge for smoothness and make the board out of tolerance. Please suggest a better method. Eric Blazi Avionics Manufacturing Robins AFB, GA ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################