At 04:05 PM 10/25/97 +0800, you wrote: >Can any of you let me know the 'typical' drill sizes you are using for your PCB designs. > >The last time I drilled any boards was about 10 years ago, and I haven't the faintest idea what size the bits were after all these years... > >The holes that I'm most interested in are - > > 'Standard' DIL IC pins (no socket) > Axial components e.g. 1/8 watt resistors > 0.1" male IDC (Berg) headers I don't know the drill sizes off hand, but the standards I have seen call for a ffinished hole diameter of 0.007in to 0.015in over the lead size. Measure the leads and add. The problem you will most likely run into is that you won't have that particular drill on hadn.