"Round swivel head design that allows the user to arrange the ratchet in multiple positions, including the ability to use it straight on as a speed handle","100 tooth design and compact head allows access into confined areas, and a 3.6° swing arc allows for minimal movement","Quick-release button securely locks socket into place and releases easily when button is depressed","Overall length: 10\" 3/8" DRIVE 100 TOOTH SWIVEL RATCHET BR10STA | Matco Tools