Thanks guys. I was really happy with how it came out.
Summary of standard HI Woodchuck handle refinishing by Walosi and Yvsa.
Equipment list:
(1) Old newspapers
(2) 3 Clean rags (choose a cloth that does not leave lint)
(3) Blue painters tape
(4) 2 large clamps
(5) 2 small clamps
(6) Murphy's Oil Soap
(7) Old toothbrush
(8) Thin jeweler's file
(9) Toothpicks
(10) Sandpaper (150, 220, 320, 400, 600)
(11) Flitz metal polish
(12) Flitz polishing cloth
(13) Birchwood Casey Wood Sealer and Filler
(14) Birchwood Casey Tru-Oil
(15) Birchwood Casey Gun Stock Finishing Wax
(16) 2 Small Sponge brushes
(1) Wrap and tape up blade, bolster and buttcap with painter's tape and old newspaper. I used clamps stand the khukuri up. I clamped the kharda and Chakma with the smaller clamps.
(2) Clean jeweler's rouge off handle surface with toothbrush and Murphy's Oil Soap.
(3) Sand handle with progressively higher grits (150, 220, 340, 400, 600, 800, etc). File grooves and retention ring with jewlers file.
(4) Apply Birchwood Casey Wood sealer and filler with sponge brush. - wait one hour -
(5) Apply Birchwood Casey Tru-Oil with finger. Let each coat dry for one day. (The package suggests waiting 2 hours. In 2 hours, the surface will dry but the oil loaded in the rings are still wet, so waiting a full day between coats makes sense.)
(6) Buff lightly with "0000" steel wool between coats. (Don't buff too hard, you will remove the oil layer. Just buff enough to get rid of the bumps and dried air bubbles. Use a clean rag to buff off the steel wool hairs that are left behind. Use toothpicks to clear the 3 ring grooves in the handle and behind the finger retention ring between coats. Otherwise the tru-oil will build up and trap debris in these recesses.)
(7) Apply Birchwood Casey Gun Stock Finishing Wax with clean rag. Rub wax in until it is dry. Repeat three or four tims. This coating makes the handle shiny and comfortable (non-sticky). The Tru-Oil finish is a bit sticky.
(8) Clean finishing oils off brass buttcap and bolster with Flitz metal polish. The Flitz polishing cloth grabs and scrubs a bit better than a regular cloth, but a clean cloth should do fine, paper towel works too but not as well.
I applied 5 coats of Tru-Oil. The entire project took 5 days. Some guys online have put 14+ coats of tru-oil on their khukuris.