He invented the worldwide first portable electric drill.

For boring, use a portable electric drill equipped with a drilling guide to assure a straight hole.

In 1917 the first trigger switch, pistol-grip portable drill was patented by Black & Decker.

The "E-start" system is used to start the engine, this means the starter is operated using a portable electric drill.

Sir, according to the police, they used a high-powered electric drill, probably portable, to penetrate the cold steel locking bar.

They require great force to push them into the material, so are normally used in drill presses or lathes rather than in portable drills.

THE most popular power tool for professionals and do-it-yourselfers, after the portable electric drill, is the circular saw.

THE portable electric drill is the most useful and versatile of all the power tools.

"There's a small lathe I used to turn parts for models, a portable drill, and a vise."

Serge ran back out the door and returned with a portable drill and car audio components from the pawnshops.