Leg vice with no more than 4&1/2" jaws . I used one all my working life . OK some say they they are clumsy and not as good as a parallel engineers vice , but when you are constantly taking a work piece in and out , moving it around 100 times in a day the long handle and quick action plus the throat depth negates any disadvantage of not having parallel jaws . You just need the correct lead clamps and soft jaw attachments .