Kondia Right Angle Head
As you can see, this is a nice right angle head for nmtb 40 taper mill.The spindle diameter is 3-3/8. The inside taper is also a nmtb 40 taper. It comes with the outboard support which is about 5-1/2 at the widest part.
Kondia NMTB 40 Right Angle 90 degree Head with Outboard Support $725