The Schley 15900 extension protectors starter kit is designed to protect the working ends of half inch drive socket extensions when they are used as striking or drift tools. This two piece set includes male and female protectors that attach to either end of an extension, preventing damage caused by direct hammering. Precision machined from heat treated alloy steel, the slim profile design allows access to tight and restricted areas. By converting standard extensions into functional drift tools, this kit expands tool versatility while helping extend the life of expensive extensions.