IPickLocks

Mul-T-Lock and an Assa 600.

Assa 700. These pins are just amazing. But if you look into the core, youll see notches in the top of the pin chambers. Thats counter milling. Its matched to the pins cutouts so they get stuck in the milling. To overcome that, you must employ an advanced tension control method called float picking.

Some of the best locks around.

The mighty Assa 700 picked. This lock has 7 pins and in those 7 pins, you have the following:

Tapered
Xmas Tree
Torpedoes
Gins

The core also has matched countermilling which will catch the lip of the gins and will negate feedback. To overcome this, you mut learn how to float pick. This is why there are two tensioners present. You can also use one tensioner that fits snug in the keyway, but 2 tensioners are my preference with this method.

This allows you to free those bound up pins by applying manual counter rotation.