72-tooth ratchet turns fasteners with a 5° swing arc; Multi-functional adaptor head converts between bit driver and 1/4" drive ratchet; Locking flex-head has 9 positions for maximum access; Includes 6 & 12 inch slim head ratchets for access to a wider variety of fasteners; Slim line head design - 0.73" wide, 0.49" thick - for improved access; Flush-mounted forward/reverse lever; Bright, full polish chrome finish easily wipes clean and resists corrosion; Sockets feature off-corner loading design to reduce fastener rounding; Bits made of S2 steel for strength and durability; Ratchet/bit driver head and ratchet adapter meet or exceed all ASME specifications