Each drill is randomly retextured as you place it.
Drills are separated into Common, Uncommon, Rare, Legendary, and Christmas, and the odds of each showing up can be customised.
Randomness should be synced between players as long as they have the same settings.
This mod is also modularly customisable so that new drills can be added without too much effort. Instructions to customise drills are included in the download.