I've drilled through a nail with the point of a pocket knife blade and it actually works well. One has the ability to control it and not hit the bed as with the hot paperclip (the blood/fluid will issue forth at the first opportunity before that happens). I do understand in this case there was the need to get to foreign matter. I thought that was a great tip to puncture a plastic bottle to squeeze for irrigation. Would have never crossed my mind to do that.