I'm not sure why there is mention of threads in my die in a few responses above?? This is the actual blade coming up above the foam and it stays there all the time. I haven't tried to push the blade back down but suppose if I used something flat and non-penetrable that may work (I have a metal ruler I could try). I'm in the middle of a project so I don't want to ruin the die. I'll have to try this in a few weeks.