drill operation
51Hammer drill — A Hammer drill, also known as a rotary hammer or roto hammer , (see also rotary hammer drill) is a rotary drill with a hammering action. The hammering action provides a short, rapid hammer thrust to pulverize relatively brittle material and… …
52Bow drill — The bow drill is an ancient tool. While it was usually used to make fire, it was also used for primitive woodworking and dentistry. It consists of a bearing block or handhold , a spindle or drill , a hearth or fireboard , and a simple bow .… …
53List of Power Rangers Operation Overdrive episodes — Power Rangers Operation Overdrive Country of origin  United States No. of episodes 32 …
54hand drill — noun a small portable drill held and operated by hand • Syn: ↑handheld drill • Hypernyms: ↑drill * * * noun 1. : a small portable drilling machine resembling a breast drill but designed to be held and operated by hand 2. : a primitive drill… …
55Hand drill (hieroglyph) — A Hand drill is a hieroglyph, (and tool), used in Ancient Egypt from the earliest dynasties. As a hieroglyph, it can also be used as a determinative for words related to the profession of vase, bowl, pot making, etc., typically from fine grained …
56Lady Godiva's Operation — Song infobox Name = Lady Godiva s Operation Artist = The Velvet Underground Album = White Light/White Heat Released = January 30, 1968 track no = 3 Recorded = September 1967, Scepter Studios, New York City, New York Genre = Rock Length = 4:56… …
57Gang drill — Gang Gang, n. [Icel. gangr a going, gang, akin to AS., D., G., & Dan. gang a going, Goth. gaggs street, way. See {Gang}, v. i.] 1. A going; a course. [Obs.] [1913 Webster] 2. A number going in company; hence, a company, or a number of persons… …
58hand drill — a portable drill designed for two handed operation. See illus. under drill1. [1760 70] * * * …
59Polish fire drill — n American a chaotic situation, bungled operation, mess. A supposedly jocular expression heard in adult speech since the 1970s. (Polish may, in US slang, play the part that Irish or Egyptian have traditionally played in British racist jokes.) …
60Directional boring — A small directional boring unit in action Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore… …
