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  2. 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 ...

  3. 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 ...

  4. Types of press tools - Wikipedia

    en.wikipedia.org/wiki/Types_of_press_tools

    Blanking is the operation of cutting flat shapes from sheet metal. The outer area of metal remaining after a blanking operation is generally discarded as waste. Size of blank or product is the size of the die & clearance is given on punch. It is a metal cutting operation. In blanking, metal obtained after cutting is not a scrap if it is usable.

  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. Punch press - Wikipedia

    en.wikipedia.org/wiki/Punch_press

    A punch press is a type of machine press used to cut holes in material. It can be small and manually operated and hold one simple die set, or be very large, CNC operated, with a multi-station turret and hold a much larger and complex die set.