I have used the regular L shaped ones, but not the socket mounted ones. Obviously they are weakened by the reduced diameter behind the "ball".

Another type of swivel device I have used is the universal joint for 3/8 drive. Not the old 3 part one built like a U joint (those stink), but the kind made for impact drivers that are 2 part and have a ball in a socket with a cross pin going through it. Those work very well.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra