Precision angled pliers
The angled pliers are a very useful tool for assembling your rebuildable trays. Made entirely from stainless steel, its pointed ends allow you to perform precise tasks. You'll be able to handle cotton or adjust your coils easily.
Warning: as stainless steel is a conductive material, it should not be used for hot mounting. In this case, it is preferable to opt for a pair of pliers with a ceramic head, which is non-conductive.