1 1/16" standard is closest to 27mm
Ball and socket
The acetabelum is the hip socket. The "ball" joint of the hip fits into this socket so the leg can move properly.I think you mean Acetabulum, and it is the socket of the hip joint.
it is called the acetabulum (sp?) This is where the top (ball) of the femur fits into the socket (acetabulum) of the hip ... called a ball and socket joint
The head of the femur articulates with the os coxa (pelvis) at the acetabulum. The acetabulum is the rounded socket that the head of the femur fits into. It also allows sliding of the pelvic bones and rotation. This joint is a synovial joint and is an example of a "ball-and-socket" joint.
The glenohumeral joint is a ball-and socket joint that is formed between two bones, the humerus and the scapula. The humerus head, acting as the ball, fits into the end of the scapula known as the glenoid, the socket.
42mm is a standard socket. If you mean "what SAE socket fits," none of them do. BTW, what are you trying to get off that's got a nut that big on it?
27mm
27mm and extension bar.
1 1/8 or 27mm socket
36mm rear , 27mm front
27mm
Ball and socket
The part of the tooth that fits into the socket of the jaw(mandible) or maxilla(for upper teeth) is the "root" of the tooth.
Fits socket 7 boards.
Socket
Any battery socket that it fits.
No, you cannot use a metrc socket on a standard socket wrench. These are two different systems of measurement and are not interchangeable.