Looks a lot like a Forstner drill bit to me. Produces a flat-bottomed hole.
You know at one time we furnished our house in my home made things and "early garage sale".......Dr.Zook said:ED I can't tell much from the picture and I don't subscribe to workbench, but could it be a drill bit to make a mortise & tennon joint in "rustic furniture? You know the furniture made from tree limbs and branches. That what most people keep outside on the patio, but is your primary living room outfit.I know you don't spend money on furniture, just tools. LOL
![]()
Dave
the "Doctor"
Yes! No excuse for having a straight hole when you have this bit.....aniceone2hold said:The curved back is the big clue on this bit. It is used to drill a slightly curved hole, the joke was to drill around corners, but it's almost true. Electricians still use this type of bit.