Sockets are specifically designed for injector lines and EGT sensors, providing a secure fit and preventing damage. Set includes both offset and straight sockets to address various angles of clearance. An open hex body allows clearance for wires and other obstructions. Includes (Qty): (2) 13mm socket 3/8" drive, (2) 14mm socket 3/8" drive, (2) 17mm socket 3/8" drive, (2) 19mm socket 1/2" drive, (1) 21mm socket 1/2" drive.