The Lisle Seized Fastener Remover Kit, No. 62140, offers a driver designed to work with the included sockets or bit holder and 5/16" hex impact bits. The kit can be used with a pneumatic impact tool to loosen rusted or seized fasteners. The hex shape of the sockets and flats on the bit holder allowthe use of a turning wrench while impacting the fastener. A locking pin in the driver keeps the bit holder in place on the square drive for safe operation. The bit holder can be removed from the driver by depressing the pin. The kit, contained in a blow molded case, includes six sockets to fit hex .394" to .830", Phillips Nos. 1, 2, 3, 4 and a straight slot bit.