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  2. Air hammer (fabrication) - Wikipedia

    en.wikipedia.org/wiki/Air_hammer_(fabrication)

    In the 1920s, two pneumatic devices were invented that would permanently change the way metal and stone were hammered. The pneumatic rivet gun was originally developed to set hot rivets on girder bridges and high steel buildings. This tool was later scaled down for sheet metal, as the 1930s saw the advent of monocoque aluminum aircraft. The ...

  3. Automatic center punch - Wikipedia

    en.wikipedia.org/wiki/Automatic_center_punch

    An automatic center punch is a hand tool used to produce a dimple in a workpiece (for example, a piece of metal). It performs the same function as an ordinary center punch but without the need for a hammer. When pressed against the workpiece, it stores energy in a spring, eventually releasing it as an impulse that drives the punch, producing ...

  4. Disc cutter - Wikipedia

    en.wikipedia.org/wiki/Disc_cutter

    These cutting discs are made just like the smaller wheels of an angle grinder, with resin bonded abrasive material, or are of metal with a diamond-coated edge. A cutoff saw is used for cutting larger items, like heavy metal stock, metal studs, and for cutting large metal pipe. The cutting discs for this tool are usually 10 or 12 inches in ...

  5. Ball-peen hammer - Wikipedia

    en.wikipedia.org/wiki/Ball-peen_hammer

    The head of a diagonal-peen hammer, as the name implies, has a wedge set at a 45° angle from the handle; it can be a left angle or a right angle, and some peen hammers have a double diagonal wedge [3] for ergonomic reasons. [7] They are commonly used by blacksmiths during the forging process to deliver blows for forging or to strike other ...

  6. Chisel - Wikipedia

    en.wikipedia.org/wiki/Chisel

    A chisel is a wedged hand tool with a characteristically shaped cutting edge on the end of its blade, for carving or cutting a hard material (e.g. wood, stone, or metal). The tool can be used by hand, struck with a mallet , or applied with mechanical power . [ 1 ]

  7. Tool bit - Wikipedia

    en.wikipedia.org/wiki/Tool_bit

    In machining, a tool bit is a non-rotary cutting tool used in metal lathes, shapers, and planers.Such cutters are also often referred to by the set-phrase name of single-point cutting tool, as distinguished from other cutting tools such as a saw or water jet cutter.