The STANLEY™ Folding Metric and SAE Hex Keys feature durable composite construction. The rubber side inserts allow for a secure grip and the chamfered edge helps guide the wrench for a smooth, easy entry of the hex key. It has size markings printed on the hex key body for easy identification. Tool Type: SAE Hex Keys; Metric Hex Keys Set; Tip/Socket Type(s): SAE Square, Metric Hex; Tip/Socket Size(s): Assorted; Overall Length: 5".