I am building a 5gal bubble bucket. Have 5gal silver lowes bucket Vivosun commercial air pump 2 airstones and 10ft black silicone air line An ph perfect trio grow micro bloom Greatwhite myco. Calimagic cal mag supplement . 300 advertised watts mars hydro led. 6in mesh pot bucket top. Clay pebbles. 1.5 inch rock wool cubes. I ordered a hydrofarm kit has the fill/drain tube , top water ring all needed grommets. What im wondering is what which type of drill bit works best to give me a smooth hole for fill tube grommet . spade bit . or regular metal/wood bit also does anyone know what size bit i would need im guessing about 13/16th. Anyone done a similar build id appretiate any advice thanks my friends take care.
