The Slogging Spanner 24mm Open End CRV is a heavy-duty wrench designed for use in high-torque applications. The "24mm" refers to the size of the open-ended jaw, making it suitable for fasteners that require a 24mm opening. "CRV" stands for Chrome Vanadium, a high-strength steel alloy known for its durability and resistance to wear and corrosion. The open-end design allows for easy access to fasteners in tight or confined spaces, while the slogging feature makes it suitable for use with a hammer to apply extra force, making it ideal for heavy-duty tasks such as automotive repairs or industrial applications.