It looks to me as if one or two things have happened.
I believe it was Ryan Alden who posted here about his father using a pipecleaner so aggressively that he bored a hole out the front of the bowl.
Or, it looks as if someone was trying widen the draft and just pushed the bit out through the bowl and beyond. This is the reason one should never ream with a drill, just use an unattached drill bit, maybe in a hand vise, but never in a drill.
I believe it was Ryan Alden who posted here about his father using a pipecleaner so aggressively that he bored a hole out the front of the bowl.
Or, it looks as if someone was trying widen the draft and just pushed the bit out through the bowl and beyond. This is the reason one should never ream with a drill, just use an unattached drill bit, maybe in a hand vise, but never in a drill.