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Chassis punches: assorted sizes round and square Chassis punches: assorted sizes round and square disassembled. 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.
A die is located on the opposite side of the workpiece and supports the material around the perimeter of the hole and helps to localize the shearing forces for a cleaner edge. There is a small amount of clearance between the punch and the die to prevent the punch from sticking in the die and so less force is needed to make the hole.
23-year-old amateur died three days after receiving a knockout punch 90 seconds into a championship boxing match in Jijoca de Jericoacoara, Brazil. [108] [109] 17 Dec 2023 Timofey Shadrin Unknown: 14-year-old boxer died after a series of punches to body at the final of Pervouralsk youth championship. [110] 26 Dec 2023 Kazuki Anaguchi Seiya Tsutsumi
35-year-old Nigerian-born Pablo Elochukwu, an Ontario resident, died after competing in his first amateur mixed martial arts bout in the Amateur Fighting Club in Port Huron, Michigan, on April 7, 2013. According to reports, neither he nor his opponent was required to undergo pre-fight medicals for their bout.
By 1903, though Johnson's official record showed him with nine wins against three losses, five draws and two no contests, he had won at least 50 fights against both white and black opponents. Johnson won his first title on February 3, 1903, beating Denver Ed Martin on points in a 20-round match for the World Colored Heavyweight Championship.
Quick change tool system (left: die; front: punch, split punch retainer; back: tool body; right: punch guide) A die set consists of a set of punches and dies which, when pressed together, form a hole in a workpiece (and may also deform the workpiece in some desired manner). The punches and dies are removable, with the punch being attached to ...