I have switchblade in front of me with a torx on one side and the round style pivot head on the other side. I have taken this kind of knife apart before when I did my Kershaw Leek but I have forgotten the exact way I did it. Been too long. Funny, if you stop and think about it. I have to torque the pivot with pressure on the scales but that is about all I remember. Sheesh, I even found one of my old post where I told somebody else to try it. It is just like the last time I did the Leek I guess, trial and error.