hammer drill

noun

1. a rock drill operated by compressed air in which the boring bit is not attached to the reciprocating piston

2. an electric hand drill providing hammering in addition to rotating action

Example Sentences

It’s the Hilti TE 4-22 cordless rotary hammer drill.

From Los Angeles Times

They type, pull, hammer, drill and plan.

From New York Times

You can make faster work of this if you have a rotary hammer drill equipped with a chipping tip.

From Seattle Times

He carried about 50 pounds of gear, including a hulking battery-powered hammer drill to set bolts into the rock and about 500 feet of rope.

From New York Times

"With just a regular hammer drill and chisel and hammer we were able to open an opening that was big enough so that we could see beyond the end of the fissure," he said.

From BBC