The castle nut socket are all manufactured from medium carbon steel that has been heat treated then chrome plated. This gives the sockets terrific hardness and tensile strength and assures a long and useful life.
Swinging arm tool
Manufactured from medium carbon steel /heat treated and chrome plated
Drive: 19mm socket
Dimensions: External 30mm, Internal 24.5mm, Lugs 4mm x 5mm x 4