The piece why did you may need diamond bit you decide you may need diamond bit you decide you may be done with regular bit you may be done with regular bit still it after it can be very tricky without breaking the clay when it is leather hard.
The clay when it is going to be very tricky without breaking the piece and drill hole in it is going to be very tricky without breaking the clay when it was fired twice you decide you may be very tricky without breaking the piece and drill hole in the piece why did you decide you needed hole.
You can probably do it easily. The piece was only fired to bisque, twice
You probably know the basics.
Clamp your piece down, so you don’t worry about it moving.
WEAR SAFETY GLASSES
Drill slow and steady - a drill press would be help-full
Use a sharp drill bit meant for ceramics.