I think you'll find these will be too expensive to produce. Thou small parts they need to be machined on 3 sides which means setting machine 3 times ensuring accurate relocation.
Also 2 operations are full 3D which takes long time for just a few parts and to do properly in larger volumes will require a special Jig to be made. Again timely and expensive to make, esp if lots are to be made in one go.

How about a mould and using resin.?