As the wrench’s adaptor will be used with tools it needs to be wear-resistant and hard to prevent damage. Carbon steels are used for applications in which high strength, hardness and wear resistance are necessary.
Nylon
The strap is made from nylon because it is lightweight, has incredible tensile strength, durability, and resistance to damage. Nylon is an elastic synthetic polymer that is able to be produced as sheets or moulded objects.