Summary

This is an attachment you can import into tool designs to attach to a ratchet socket or any square driver.

Size can be changed parametrically in Fusion 360. Change DriverSizeImperial to set driver size (eg. 3/8, 1/2, 1/4 drives) or you can change DriverSize to any size Square Driver in mm.

.stl export of 3/8 driver included as example.