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  2. Knockout punch - Wikipedia

    en.wikipedia.org/wiki/Knockout_punch

    In metalworking, a knockout punch, also known as a chassis punch, panel punch, Greenlee punch, or a Q-max, [1] is a hand tool used to punch a hole through sheet metal. It is a very simple tool that consists of a punch, die, and screw. There are three different drive systems: manual, ratchet, and hydraulic. [2]

  3. Greenlee - Wikipedia

    en.wikipedia.org/wiki/Greenlee

    Greenlee is an American industrial and electrical tool company headquartered in Rockford, Illinois.It was founded in 1862 by twin brothers Robert L. and Ralph S. Greenlee to manufacture their invention called a hollow chisel mortiser, consisting of a drill surrounded by four chisel blades used in making mortises (the hole) for mortise and tenon joints, for the furniture industry in Rockford. [1]

  4. Punching machine - Wikipedia

    en.wikipedia.org/wiki/Punching_Machine

    Quick change tool system, plug and punch (left: die; front: punch, split punch retainer; back: tool body; right: punch guide) The linear tool carrier (y-axis) has several stations that hold the punching tools and one cutting tool. Especially for flexibility and efficient processing are set up times a crucial cost factor.

  5. Eva Longoria Says 6-Year-Old Son Has ‘Appreciation of Worldly ...

    www.aol.com/eva-longoria-says-6-old-120000944.html

    Eva Longoria’s 6-year-old son already has an adventurous palate.. During a recent interview with PEOPLE about her new campaign for Nespresso, the actress, 49, opened up about living between ...

  6. Punch press - Wikipedia

    en.wikipedia.org/wiki/Punch_press

    Punch presses are large machines with either a 'C' type frame, or a 'portal' (bridge) type frame. The C type has the hydraulic ram at the top foremost part, whereas the portal frame is much akin to a complete circle with the ram being centered within the frame to stop frame deflection or distortion.

  7. Automatic center punch - Wikipedia

    en.wikipedia.org/wiki/Automatic_center_punch

    The most common mechanism is based upon the Sweet patent. Within the body of the punch, there are three principal moving parts arranged in line: The punch; The intermediate rod (tumbler) The hammer (hammer mass) The hammer mass is spring-loaded from the back of the punch by a large spring. (The spring's preload compression can usually be ...