Crafted by Sparrow Lock Picks, the King & Queen Lock Picks trump the board when you've tried every other pick and you still can't gain access to that lock, it wont pop, you know you have the skills but that cheap lock is winning. These Queen and King lock picks are perfect for the locks that have the pining combinations with crazy highs and lows. This spacing between the heights of the pins are refered to as the MAC. When you have insanely spaced MAC between the pins these two lock picks come in. A great addition to the collection.