How to drill drainage holes ~ For unglazed terra cotta pots ceramics, masonry drill bits are used. For harder, glazed surfaces, glass and tile bits are used. Bits come in various diameters. Masking or painter’s tape will help keep the drill bit from slipping; not necessary but does help steady the bit as you begin. Drill at a slow steady pace apply very little pressure - let the drill do the work. #garden #container_garden #houseplant #potted_plant