60,000 psi (pounds per square inch) is a measure of pressure, and it is a very high level of pressure. To put it into perspective, here are a few examples of what 60,000 psi is equivalent to:4,137 atmospheres of pressure: This is over four thousand times the atmospheric pressure at sea level, which is approximately 14.7 psi.4,223 meters (13,852 feet) of water depth: This is the depth at which the pressure of the water would be approximately 60,000 psi. Diamond anvil pressure: 60,000 psi is roughly the pressure that can be achieved using a diamond anvil to compress materials. In the context of water jet cutting, 60,000 psi is the typical pressure used to create the high-pressure water stream that is used to cut through materials. The high pressure allows the water jet to cut through a wide variety of materials, including metals, plastics, ceramics, and composites, with precision and speed.