How To Use A K-Tool, Step-By-Step

A good step-by-step description of K-Tool use. Includes steps in text on the screen. (Starting at 00:10)

Also has good close ups of how to manipulate the lock mechanisms to open the lock after the lock covers are removed.

Also has good video examples of a "mortise lock" and "deadbolt lock" mechanisms.

Source: Bellingham Fire Department Youtube Channel

Here's a link to K-Tool use instructions. (Source L.A. County Fire Dept.)

Here is an example of a "Mortise Lock":

Source: Central Safe And Lock

I think a "mortise lock" is a door lock in which a rectangular cut (rather than a round drilled hole) is made into the door and door frame to house the dead bolt and the door frame hole that it slide into.

Here's a drawing of a Rim Lock:

Source: chestofbooks.com