The Slogging Spanner 41mm Open End, made from CRV (Chrome Vanadium) steel, is a heavy-duty tool designed for high-torque applications. The open-end design allows it to fit over nuts or bolts, providing a solid grip for tightening or loosening. The 41mm size is ideal for larger fasteners, and the CRV steel construction ensures strength, durability, and resistance to wear, making it perfect for industrial, automotive, or heavy machinery tasks. Its ability to withstand impact, such as being struck with a hammer or "slogged," makes it suitable for tough, high-force applications.