[Hellfighter]

tip's of the soldering on the MOB, if they are pointed sharply they can cut you up a bet and the housing on the PC tower sharp edges. the metal is press cut out then folded over the make the tower then stamp together in some case.

use to happen to me making 11meter ham radio's in the U.S

Basic a 11meter Ham radio is a CB radio with FM/AM/SB over 3000 channels to use (counting the Side bands).
last time i made any was back in 1994 i move away, no more need for it. still have the books on it.

1.) the soldering tips on the MOB or broads PCI/PCIe Cards
2.) tower case the metal is press cut out very sharp edges.
3.) there is a baddly press puntch out that has a sharp metal point stinking out from it, some times you get to close and cuts you very small to see were it is or the cuts it makes on you..

basic i think it the the soldering tips that got you a small wire coming throu it can do it or the Soldering point. case with sharp edge may scrape you up some and make cuts you can see. but the soldering tips can make hairline cuts as will harder to see.