Both the PakRatchet and its little brother, the Pocket PakRatchet, store a set of sockets and an extension right in the handle so you can grab the ratchet and go.The full-size PakRatchet stores seven sockets and a 3″ extension in the handle. The 3/8″ drive ratchet is available in both metric and imperial versions — it’s made from a high-torque composite that’s non-conductive and resists corrosion. The 6-point sockets are chrome vanadium steel.The Pocket PakRatchet also stores seven sockets and a 3″ extension. It comes in either a 1/4″ or 3/8″ drive in both imperial and metric version and is made from a high-torque composite — presumably the same material as its bigger brother.The 3/8″ drive PakRatchet and Pocket PakRatchet include 10mm, 11mm, 13mm, 14mm, 15mm, 17mm, and 19mm metric sockets or 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, and 3/4″ imperial sockets. The 1/4″ drive Pocket PakRatchet ships with either 6mm, 7mm, 8mm ,9mm ,10mm ,11mm ,and 13mm metric sockets or 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16, and 1/2″ imperial sockets.Duluth Trading Company sells the 3/8″ drive imperial version of the PakRatchet for $20 and the 1/4″ imperial version of the Pocket PakRatchet for $15 plus shipping.
I think Topeak did something similar