Replacing fuse in Dewalt battery charger
That's not really a fuse holder, although it might look a bit like one. The whole thing is the fuse itself. The 'cups' that hold the actual fuse can't usually be taken off.



The only way to replace this type of fuse is to desolder it from the board, and replace it with a new one. The new one should also have wires already connected to it, that you can bend so they will fit through the holes. Then you can solder the wires and cut off the excess length.

(Fuses usually break for a reason though, so there is a possibility that the fuse is not the only problem. Although you might be lucky.)