Remove the templates and clean up where necessary
- don't touch the front face. Set up in a similar
jig with the handle material just protruding from
the front of the template. Use a 6mm diameter cutter
(at 2500 r.p.m.) with the shank following the template'
make two light slow passes by hand to complete the
cut. This can be done at your drill press or using
a router, try and find a cutter with the shank diameter
matching the cutting diameter.
A good match - trim down the handle slabs closer
to finished size before fitting - glue, rivet and
clamp in all directions.