drill

Table of Contents

Introduction References & Edit History Related Topics

Images

Discover

San Francisco, California/USA-1/18/20: Womens March at Civic Center marching with signs of political protest regarding equality also embracing 2020 presidential candidates and celebrating equality

How Does the U.S. Government Define the Difference Between a Protest and a Riot?

NBA Lakers Celtics Finals Kevin Garnett shooting.

10 Great Sports Rivalries

An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Time zone map with standard time zones and International Date Line

Why Are Some Time Zones 30 Minutes Off Instead of an Hour?

Nelson Mandela, undated photo.

15 Nelson Mandela Quotes

Estimated battle casualties, Normandy invasion, World War II. WWII, D-Day

Estimated Battle Casualties During the Normandy Invasion and Campaign to Liberate Paris (June–August 1944)

drill: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Photos

See All Images →

Topics

rotary drill rock drill piston drill hammer drill drifter drill flute hand drill twist drill strap drill pump drill hand tool machine tool tap reamer siphon needle die goniometer gauge square

Dig Deeper: More Articles That Discuss This Topic

hand tool: Drilling and boring tools