The Collaborative International Dictionary of English v.0.48:
Boring \Bor"ing\, n.
1. The act or process of one who, or that which, bores; as,
the boring of cannon; the boring of piles and ship timbers
by certain marine mollusks.
One of the most important applications of boring is
in the formation of artesian wells. --Tomlinson.
2. A hole made by boring.
3. pl. The chips or fragments made by boring.
Boring bar, a revolving or stationary bar, carrying one or
more cutting tools for dressing round holes.
Boring tool (Metal Working), a cutting tool placed in a
cutter head to dress round holes. --Knight.