drill bit

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drill bit

The pointed part of a drill that bores a hole into the surface or material being drilled. I think we'll need a different size drill bit to make a bigger hole in this wood.
See also: bit, drill
References in periodicals archive ?
the determination of the likely penetration rate of the drill as well as the drill-steel and drill-bit consumption is of enormous interest to both miners and manufacturers of drilling equipment.
In addition, the force-penetration test can be used to make a simple estimate of how drill-bit wear affects drilling.