An employee was using a grinding/cutting tool to cut samples from inside a high-pressure processing cylinder. He was cutting samples to provide to the manufacturer due to cracks in the cylinder. The employee had cut and removed a sample from the smaller cracked side of the cylinder and then moved to the more significantly cracked side of the cylinder to cut a larger sample. He was making his final cut when the metal exploded. A piece of metal from the cylinder struck his left wrist, resulting in a laceration. The employee also suffered a broken left arm, a laceration to his right hand, and a fingertip amputation on the right hand. The employee was hospitalized.