Sometimes, every locksmith needs a little break through. The protective disks (a.k.a. "blocking wafers") found in many newer series 700 and 1100 American Lock padlocks prevent easy use of standard padlock bypass drivers. But these Wafer Breaker tools from Peterson can quickly and cleanly puncture such security disks.
Paired with an American Lock Padlock Bypass Driver, this item is incredibly useful in the field.