Kwikset Killer Key

Killer Keys are typically used by law enforcement and landlords as an affordable and disposable access denial device. A Killer Key can instantly and permanently disable a lock, and render all other keys unusable within the disabled lock.
Once inserted into a lock, a specially placed and shaped cutout along the key blade ensures that the pins will fall behind the groove and become lodged, making it impossible to pull the key out. The key is scored along the width of the key between the head and the blade, so that once inserted permanently into a lock, the head can be snapped off, making the lock appear to be unaltered, at a glance.
The door can still be opened from the inside, so no one can be locked in, only locked out.
With this file, you now have access to all the Killer Keys you need.

This listing is for a Killer Key for Kwikset Locks, marked on the key head with the letter 'K'

You can purchase other key types here:

All 3 Keys (Kwikset, Schlage, Padlock)
https://cults3d.com/en/3d-model/gadget/killer-keys

Schlage Killer Key
https://cults3d.com/en/3d-model/gadget/schlage-killer-key

Padlock Killer Key
https://cults3d.com/en/3d-model/gadget/padlock-killer-key

DISCLAIMER: UNDER NO CIRCUMSTANCES SHALL I BE LIABLE FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL OR EXEMPLARY DAMAGES ARISING FROM THE ILLEGAL USE, OR MISUSE, OF THIS MODEL. ALL LEGAL LIABILITIES ARE ASSUMED BY THE USER.
Never use the Killer Keys on a lock you do not own.
Only use the Killer Keys in accordance with all Local, State, and Federal Laws.

INFILL:100%
SUPPORTS: not necessary
POST-PROCESSING: Be sure to remove any burrs or over extrusions from the blade of the key with some light sanding, to ensure ease of entry into the keyway