ROOK & KNIGHT
In some ways this is an expansion to the Classic King and Queen Picks but it is also a very strong set of picks in their own right.
Rook and Knight picks are designed to mimic the keyways of locks with large variations between high and low pin settings. Often what can happen in these situations is your pick will accidently overset the low pin that is in front of the high pin you are attacking.
These picks are used in a tryout fashion by slowly sliding the pick once it is set into the keyway trying different heights and depths.