Routing Guide for Slotted, Beveled Headstocks

Aluminum routing guide for the slots, with registration guides on either side and at the top. I've hogged out most of the wood with a 1/2" Forstner:

Headstock bolted into jig for slot routing:

Routing the slot with a 1/2" "shear angle" bearing guide bit:

Underside of jig is ramped, with maple registration blocks which fit the slots:

Headstock registered for beveling one slot:

Top view, bevel routing:

120 degree chamfer bit routs bevels:

Bevels routed in both slots:

The finished headstock