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2. 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.

3. Turret punch - Wikipedia

   en.wikipedia.org/wiki/Turret_punch

   A turret punch or turret press is a type of punch press used for metal forming by punching. Punching, and press work in general, is a process well suited to mass production. However the initial tooling costs, of both the machine and the job-specific press tool, are high. This limits punch work from being used for much small-volume and prototype ...

4. Types of press tools - Wikipedia

   en.wikipedia.org/wiki/Types_of_press_tools

   The compound tool differs from progressive and stage tools by the arrangement of the punch and die. It is an inverted tool where blanking and piercing takes place in a single stage and also the blanking punch will act as the piercing die. That means punch will be to the bottom side of the tool and piercing punches to top side of the tool.

5. 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]

6. Punching - Wikipedia

   en.wikipedia.org/wiki/Punching

   A turret punch press houses punches and their corresponding dies in a revolving indexed turret, while a rail type punch stores tooling on a back rail out of the way of the workpiece. These machines use hydraulic as well as pneumatic power to press the shape with enough force to shear the metal.

7. NYPD’s search for UnitedHealthcare CEO Brian Thompson ... - AOL

   www.aol.com/news/nypd-divers-continue-search...

   NYPD divers Sunday continued to search the Central Park Boathouse pond for potential clues including the gun used in the slaying of UnitedHealthcare CEO Brian Thompson as cops were still hunting ...