drill bit

(redirected from a drill-bit)

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 ?
Next, the displacement value [u.sub.f] during unloading can be obtained via the equation of motion for a drill-bit (9), as shown in (18).