I am not aware of any "other" clip that would fit the D25A/C series.
a 1/16th/1.5mm wrench can be used for clip screw removal, or occasional re-tightening of the clip screws (works better with a small dab of loctite)...
There is a ET 1.55mm custom tool (not 1.5mm) only required if you are going to be frequently removing/re-installing the clip screws... as it fits better and minimizes screw head/tool stripping.
TMI: Manufacturing variations/tolerances between screw heads and tools by the varying manufacturers cause the problem -
when ET sourced screws from several screw manufacturers, and then allen/hex wrenches from several tool makers - ET could find none that matched perfectly, for these tiny screws.
The screw manufacturers said they oversized the tolerances so wider range of tools would fit, and the tool manufacturers said they undersized tolerances so they would fit more screws!
LOL, it drove the ET owner bonkers - so he had a custom 1.55mm tool made to fit, which frankly not worth the $3-4 they want (again unless you are intending to frequently switch the clip out).
if you have started to strip out the threads, there are replacement 2-3 thread longer screws available, and/or even new preassembled end cap kits available,
but otherwise use a couple good quality small screws would work, if you re-thread the end cap to match the threading of the screws.
Cheers
btt for you..
and anyone know the button head screw size for the included clip screws? Custom? anyone find a better replacment and re-thread it?
I know the hex size is some m1.5 but not really a m1.5 special thing.