Schlage does not recommend cutting the L or LP section key blanks in the field. Below are some details.
Non Primus:
In the classic family of keyways the "L" key section is the highe...
All lock cylinders on a specific project are operable by a special "project key". Duplicates of this key may be assigned by the building contractor to workmen and subcontractors as required...
Conventional Cylinders - A conventional cylinder is one that requires some breakdown of the lock in order to be removed.
These are the most commonly used cylinders sometimes called key-in-lever...
This option is not available as there is no NL cam to directly drive the rods and using a key to lift the heavy stainless, brass or bronze rods would damage the key.