What is your procedure when you get a new multitool? After I unbox my new acquisition I check the function of all moving parts and clean/lubricate as needed. I try to avold this lubricants that leave a dirt attracting residue and wipe it down with a soft cloth. Lastly, I sharpen any blades as needed. If the cleaning/lubrication doesn’t loosen the action of moving parts I move them throughout their range of motion repetitively to loosen them up.