This Ryobi 97 pc Mechanic's Tool Set has both 1/4” and 3/8” drive quick release ratchets with a 4-degree arc. The 6-point sockets have large markings for easy identification, 6 point provides maximum torque while reducing the chance of rounding out fasteners. The polished chrome finish resists corrosion and allows for fast easy clean up when your job is over. The included case is LINK wall storage compatible (LINK wall system sold separately). Set includes: (1) Case, (1) 1/4" Ratchet, (1) 3/8" Ratchet, (1) 1/4" Driver Bit Driver, (1) 1/4" Drive 3" Extension, (1) 3/8" Drive 3" Extension, (1) 1/4" Drive Bit Adaptor, (1) 3/8" Drive to 1/4" Adaptor, (21) 1/4" Drive Sockets, (24) 3/8" Drive Sockets, (40) 1" Insert Bits, (5) Nut Drivers.