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OK Roger,on the drilling ,,
one thing orrrr two rrr
Please keep in mind I'm not under minding your ability, I'll mention these things just so we all are on the same page.
((because the scales will be thin,,,))
the center threaded sleeves ((for the interest of the viewers) the 2 long threaded alignment pins for jade and ivory))
I intend/ed to have them both the same length, meaning...
the holes in the ivory will be at deferent depths , this is so
the buyer won't worry about getting the two pins in the wrong places if/when reassembling it.
((the front and read bolster pins are at an obvious different length for the new owner.))
don't be afraid to trim them Roger,
{ (important) equally from both ends,, the center of them was not tapped through
because of their length, they were tapped from both ends to the center.}
keeping in mind, where the tang is thicker at the front the depth of the alignment hole/s
is the main concern ,
one of two
just deep enough to hold well but not so deep to interfere with
the length of screw head and hold down material under the screw.
keeping in mind again the rear pin will be setting farther into the Ivory (with the pins at the same length)
because of the tang taper there will be less hold down material under the rear screws.
. is this making any sense?

I'm sure you will keep the holes 90deg to the center line of the blade not to the taper. JUUUUST Checking
