Got this on a whim 20 bucks. I cleaned it up with a wire wheel and oiled it.
I figure this Archimedes style Yankee probably was made 1900-1910. It has the original wood knob on the top, my guess it is Beech. It is not Rosewood.
Works well It makes 3.5 turns down or up, so based on simple math 700-900 rpm if the drill and operator are working correctly. It works really well for counter sinks. One thing I found is the bit tends to bind more in soft wood.
I figure this Archimedes style Yankee probably was made 1900-1910. It has the original wood knob on the top, my guess it is Beech. It is not Rosewood.
Works well It makes 3.5 turns down or up, so based on simple math 700-900 rpm if the drill and operator are working correctly. It works really well for counter sinks. One thing I found is the bit tends to bind more in soft wood.
