QUOINS

An arch wrench is a tool used in construction to fasten and tighten arch elements in place. A specialized type of wrench used for construction work with lightweight materials such as polystyrene. The socket wrench serves as an essential fastening tool in construction to ensure the stability and strength of structures. The use of a suitable keystone ensures that the vaulting elements are tightened evenly, contributing to the durability and safety of construction projects.