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a drill press is handy and makes the job easy but you can get by with a hand drill heck even a pocket knife if you got the time . fit it as tight as you are able, the tighter the fit the less glue...

i have made a few with knots from golden nib. drill that hole a good 1/8 deeper than where the glue that holds the knot togeather stops. i found that it looks better and the knot holds it shape...