ring slogging spanner, also known as a striking or hammer wrench. It is a heavy-duty tool used to apply torque to stubborn nuts and bolts, often by striking the flat end of the handle with a hammer. The spanner in the image is marked with a size of 2 3/8".
Material: Slogging spanners are typically made from hardened and tempered steel, such as chrome-vanadium or high-carbon steel, to withstand heavy impacts.
Design: The design often includes a 12-point ring and a reinforced end for durability.
Applications: They are commonly used in industrial settings, such as construction, railway maintenance, and heavy machinery repair.
Availability: These spanners are available from various manufacturers and can be found on retail sites like Amazon and specialty tool suppliers.