Drillers

Sold in the Item Shop, but , , and are also sold by .
Drillers are used to increase the number of Rune Slots (max: 4) on an item, but each type of driller is limited to the item type, and number of slots, it can increase.
* - Upper Body, Lower Body, Feet, Head, Belt, Shoulders, and Hands
* - Earrings, Rings, and Necklaces
* - Cloaks, Capes, etc.
* - Wings, etc. (not available as of 09/17/2020)
* - All weapons