I just warrantied an SK 6mm 3/8" drive hex bit, due to a loose bit. I just used it to remove a bicycle pedal and sure enough, the bit popped right out. I there a trick to pressing the bit back in? A few sites indicated it is field serviceable.
It just pops back is with a small hammer until fully seated if you still have play I would grab a small taper punch and mushroom socket end to eliminate socket play