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long-hole 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 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

  • Hole saw — Not to be confused with Core drill. A 52 mm (2.0 in) hole saw with pilot bit …   Wikipedia

  • drill — drill1 drillable, adj. drillability, n. driller, n. /dril/, n. 1. Mach., Building Trades. a. a shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation. b. a tool, esp. a hand tool, for holding and… …   Universalium

  • 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 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

  • 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 — [[t]drɪ̱l[/t]] drills, drilling, drilled 1) N COUNT A drill is a tool or machine that you use for making holes. ...pneumatic drills. ...a dentist s drill. 2) VERB When you drill into something or drill a hole in something, you make a hole in it… …   English dictionary

  • Hole punch — A hole punch (known also as a hole puncher, paper puncher, holing pincer, or rarely perforator) is a common office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder. History …   Wikipedia

  • Gun drill — Gun drills are straight fluted drills which allow coolant (either compressed air or a suitable liquid) to be directed through the drill s body, directly to the cutting face. They are used for deep drilling of which gun barrels are the obvious… …   Wikipedia

  • Bow 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 .… …   Wikipedia

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