number drill
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Drill bit sizes — Drill bits are the cutting tools of drilling machines. They can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors. In the U.S.,… … Wikipedia
Drill commands — are generally used with a group that is marching, most often in military foot drill or marching band. All branches of the military use drill commands. Contents 1 Command voice 2 Common drill commands 2.1 United Kingdom and Australia … Wikipedia
Drill (EP) — Drill EP by Radiohead Released 5 May 1992 Recorded February 1992 … Wikipedia
Drill instructor — A USMC drill instructor A drill instructor is a non commissioned officer or Staff Non Commissioned Officer in the armed forces or police forces with specific duties that vary by country. In the U.S. armed forces, they are assigned the duty of… … Wikipedia
Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… … Wikipedia
Drill string — A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied as the assembled collection of… … Wikipedia
Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry … Wikipedia
Drill team — The U.S. Marine Corps Silent Drill Platoon performs the rifle inspection routine in front of spectators seated in the Reviewing Stands during the Battle Colors Ceremony held at Marine Corps Recruit Depot San Diego, California. A drill team can be … Wikipedia
Drill bushing — A drill bushing, also known as a jig bushing,[1] is a tool used in metalworking jigs to guide cutting tools, most commonly drill bits. Other tools that are commonly used in a drill bushing include counterbores, countersinks, and reamers. They are … Wikipedia
Drill bit shank — The shank is the part of a drill bit grasped by the chuck of a drill. The cutting edges of the drill bit are at one end, and the shank is at the other. Different styles of shank/chuck combination deliver different performance, such as allowing… … Wikipedia
