Ever need to drill drainage holes in ceramic pottery? Its really easy, and only requires a diamond coated 14 mm (5/8 inch) drill bit. There are just a few pointers to assure easy drilling: (1) turn pot upsidedown and flood the surface with water; (2) start drilling at a 10-15 degree angle
to get the drill bit started, before drilling vertically
; (3) use light-to-moderate pressure to assure a relatively clean cut to the interior
. See photo sequence and part description.
I got my drill bit via Ebay for $3.86
including shipping direct from Hong Kong, took 14 days to arrive. But I saw a recent add for the same item for just $2.99 shipped
. After drilling 17 holes
in 15-20 minutes, the drill bit remained sharp, most likely since the drilling process was kept cool with water.For large pots, simply drill more holes
rather than purchasing a more expensive, large-diameter drill bit. Its something anyone (or nearly so) can succeed.