Some PCBA's have pads along the edge, where I believe some kind of headers could be soldered (or may be not), but don't have the pads drilled. I guess manufacturers save a little cost on drilling, and is not a problem when these are breakout boards used in production settings. To turn them into something that is breadboard friendly, apart from drilling holes, is there any alternative option -- s.a. a novel way of soldering pins ?
PS> Aversion to drilling is that these are FR4 boards, and I do not have drill-press or access to one.