D, I, R and L?

Usage examples of drillbits.

I’ve seen everything from mobies to triunes to flashers to drillbits, and they don’t look like this.

On both sides of the traditional louvered doors the inner, full-length doors were propped open with a pair of giant laser drillbits, souvenirs of the deep-bore mining of Rafa III, whose vacationing practitioners habituated the place.

There was therefore a big mound of broken gravel and frozen mudslurry, industriously scraped from the drillbits, to show for their morning's work.