\Draw"bore`\, n. (Joinery)
A hole bored through a tenon nearer to the shoulder than the
holes through the cheeks are to the edge or abutment against
which the shoulder is to rest, so that a pin or bolt, when
driven into it, will draw these parts together. --Weale.

\Draw"bore`\, v. t.
1. To make a drawbore in; as, to drawbore a tenon.
2. To enlarge the bore of a gun barrel by drawing, instead of
   thrusting, a revolving tool through it.