Turning the inside taper for a B&S #13 to 40 Taper Spindle Adapter, for a VN 22L

[JRock]

Turning the inside taper for a B&S #13 to 40 Taper Spindle Adapter, for a Van Norman 22L

[dkutzner]

it looks like a offset tapper to me. chuck the piece in a 3 jaw chuck and you will see what i mean

[JRock]

You got it. The workpiece is offset by 1/4" so I have material to mill the Drive ear from
I'm cutting the Outside Taper right now, and I just turned everything down concentrically, except for 3/8" at the bottom of the adapter, to fit the drive slots on the spindle nose