Re: drilling through holes
with small (1/16 & 1/8) bits , start with shorter bits. slow and steady with constant clearing .
the nice thing about a 1/16 hole is the snugness of the thru wire.
my drill press gets about 4.5 " of throw so there is some blocks and flipping around involved , but with a small squareing jig ,and an 1.5" square blank i get fairly consistant results.
I use the 12" bits for the reaming ,or the final drill on along hole .