ABUS Brass Finish KnK Bible Cover 12 pack for ABUS 83 series padlocks.
To install KIK/KIL 3rd party cylinders in ABUS 83 series padlocks.
12 pack bag - No drivers included
In lock jargon, the part of a pin-tumbler cylinder that houses springs and top pins, is called the bible. Nothing to do with the book.