Clean residue off a drill bit
Mix a 1:1 solution of laundry detergent and water in a bowl, and allow your drill bits to soak for about 10 minutes. Remove from water , dry completely with a rag.
Mix a 1:1 solution of laundry detergent and water in a strainer, and allow your drill bits to soak for about 10 minutes. Remove from water , dry completely with a rag.