Broach(n.)
- An awl; a bodkin; also, a wooden rod or pin, sharpened at each end, used by thatchers.
Broach(n.)
- A tool of steel, generally tapering, and of a polygonal form, with from four to eight cutting edges, for smoothing or enlarging holes in metal; sometimes made smooth or without edges, as for burnishing pivot holes in watches; a reamer. The broach for gun barrels is commonly square and without taper.
Broach(n.)
- A straight tool with file teeth, made of steel, to be pressed through irregular holes in metal that cannot be dressed by revolving tools; a drift.