A hammer drill, also known as a percussion drill or impact drill, is a power tool used chiefly for drilling in hard materials. It is a type of rotary drill with an impact mechanism that generates a hammering motion. The percussive mechanism provides a rapid succession of short hammer thrusts to pulverize the material to be bored, so as to provide quicker drilling with less effort. If a hammer drill's impact mechanism can be switched off, the tool can be used like a conventional drill to also perform tasks such as screwdriving.
A corded hammer drill next to a drill bit and a chuck key
A drill is a tool used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driver chuck. Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use.
A lightweight magnetic-mount drill
A wooden drill brace and other carpentry tools including a mallet, plane, spokeshave, and rudimentary ruler) found on board the 16th century warship Mary Rose
Painting by Georges de La Tour of St. Joseph operating an auger
Carpenter using a hand-powered brace to drill a hole