Abstract: At 9:55 a.m. on September 17, 2019, an employee was setting up the deburring machine to deburr a stack of sheet metal. The employee was standing on the rear left side of the deburring machine to make sure the sheets were coming out correctly. A coworker, a temporary employee, grabbed two sheets of metal and placed them inside the deburring machine however the machine was set up to deburr only one sheet at a time. The sheets were ejected in opposite directions. One sheet struck the employee in the left forearm. The employee was hospitalized to treat a laceration to the left arm including the tendons.