Push the guard back into position and change your
drill for a lathe centering bit and drill a small
Replace your drill bit and drill your rivet hole
right through the guard. Make sure your drill is
sharp, run at the correct speed and well lubricated.
Mark out the tang position for the finger notch
on the guard before removing it from the knife,
and scribe this line across the back of the guard.
Mill the finger notch just short of the scribed
line) a 10 mm wide guard - use a 18mm diameter
Shape the guard to the required shape against the
platen or disc with the rest set to the desired
angle. You may now completely finish the blade and
tape it up to prevent scratches.
If you intend polishing the guard, plug the slot
with a piece of Perspex ground at a slight taper
and wedged in position. This will prevent rounding
the guard slot edges while buffing. Sand the face
of the guard up to 1200 grit and buff lightly, remove
the Perspex filler. Degrease the blade, the inside
of the guard slot and rivet, and apply "Pratleys
Steel" to both blade and guard (to prevent
moisture penetration) and rivet in place. Wipe off
all excess "Pratleys".