The Makita Hollow Sockets are designed to accelerate overhead fastening work by reducing time-spent hand threading fasteners over threaded rod. The hollow shafts allow long bolts and threaded rod to pass through in fastening applications while the increased socket lengths provide better access to nuts located in high places in ceiling or ductwork. The 1/4” hex shank is press-fit for durability and drops readily into an impact driver or driver-drill for convenient, automated fastening.