Stahlwille Series 440 Crow-Ring Spanners have a 1/2in Drive and bi-hexagon jaws. These spanner heads can be used with either socket tools such as extension bars and ratchets or with torque wrenches. NOTE please ensure the settings on the torque wrench are modified. Manufactured from chrome alloy steel and chrome plated. Made in Germany. Stahlwille Crow-Ring Spanner 1/2in Drive Size: 32mm.