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  2. Chuck (engineering) - Wikipedia

    en.wikipedia.org/wiki/Chuck_(engineering)

    A pin chuck is a specialized chuck designed to hold small drills (less than 1 mm (0.039 in) in diameter) that could not be held securely in a normal drill chuck. The drill is inserted into the pin chuck and tightened; the pin chuck has a shaft which is then inserted into the larger drill chuck to hold the drill securely. Pin chucks are also ...

  3. Drill bit shank - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_shank

    The drill bit is not held solidly in the chuck, but can slide back and forth like a piston; it does not slip during rotation due to the non-circular shank cross-section, matching the chuck. The hammer of the drill acts to accelerate only the drill bit itself, and not the large mass of the chuck, which makes hammer drilling with an SDS shank ...

  4. Machine taper - Wikipedia

    en.wikipedia.org/wiki/Machine_taper

    Even on many drill presses, handheld drills, and lathes, which have chucks (such as a drill chuck or collet chuck), the chuck is attached by a taper. On drills, drill presses, and milling machines , the male member is the tool shank or toolholder shank, and the female socket is integral with the spindle.

  5. Screw extractor - Wikipedia

    en.wikipedia.org/wiki/Screw_extractor

    Straight fluted extractors may come in a kit that also has associated drills, drill bushings, and special nuts, or be sold individually. The screw is drilled out with the appropriate drill and drill bushing. The extractor is then hammered into the hole with a brass hammer, because a steel hammer is more likely to cause the extractor to break.

  6. Router (woodworking) - Wikipedia

    en.wikipedia.org/wiki/Router_(woodworking)

    There are two standard types of router—plunge and fixed. When using a plunge-base router, the sole of the base is placed on the face of the work with the cutting bit raised above the work, then the motor is turned on and the cutter is lowered into the work. With a fixed-base router, the cut depth is set before the tool is turned on. The sole ...

  7. Brace (tool) - Wikipedia

    en.wikipedia.org/wiki/Brace_(tool)

    Turning the spindle of the chuck in a clockwise direction tightens the drill bit in the chuck; turning counterclockwise loosens the bit for removal. A carpenter using a brace. In most modern braces, immediately behind the chuck is a three position gear release that allows ratcheting of the handle when in tight spots. Turning the gear release ...

  8. Pipe recovery operations - Wikipedia

    en.wikipedia.org/wiki/Pipe_recovery_operations

    Pipe recovery is a specific wireline operation used in the oil and gas industry, when the drill string becomes stuck downhole. Stuck pipe prevents the drill rig from continuing operations. This results in costly downtime, ranging anywhere from $10,000-1,000,000 per day of downtime, therefore it is critical to resolve the problem as quickly as ...

  9. Jig (tool) - Wikipedia

    en.wikipedia.org/wiki/Jig_(tool)

    Device with grooves and chucks. A jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. [1]An example of a jig is when a key is duplicated; the original is used as a jig so the new key can have the same path as the old one.