What kind of key/lock is this?

[blake1803]

OK, I'm going to try and draw this with text, so let's hope it comes out OK!

My apologies if there are already 1,000 threads about this, too -- it's not for lack of trying with the search function, but my search-fu is still developing

Let's say this is your standard key, a KW1 or similar:

Code: Select all

                         __
                       /    \
  _/\/\/\/\/\/\/\/\__/       \
/====================        |
\___________________________/

Where the "=" are that indent in the side of the key-- I'm forgetting the name.

This is a key that I have seen:

Code: Select all

                         __
                       /    \
  _/\/\/\/\/\/\/\/\__/       \
/ =^^^^^^^^^^^^^^^^==         |
\____________________________/

Where there is a second set of cuts that are sort of nested in that indented area. Sorry if I'm describing this poorly... it's hard to say without a picture.

What kind of key/lock is that? I'd really like to buy a lock with that configuration and try my best at picking it. Are special tools needed, or is it pretty much just another tumbler with an extra set of pins to pick?

[illusion]

ASSA Twin uses another set of pins to engage the sidebar.

Schlage Primus is similar, and looks like the key.

"=" are the grooves in the key, that match the wards of the lock.

Hmm... they can be picked with standard picks, but it's a serious lock to pick and you'll need a LOT of practice IMO.

[blake1803]

Ah, yes! It looks very, very similar to the Schlage Primus, that's probably it.

That would definitely fall beyond my skill level at this point (unless they can be bumped ), but even so, I think I might pick up one of the locks to play around with / open up if it's not too too expensive. You can never have too many locks to play with And the concept is pretty interesting...

Thanks for the info!

[Raccoon]

do the sidebars of these locks vary from key to key, or can someone shave a key down and use it as a tensioner -- as the keyblank works in every lock?

[zeke79]

That would likely fall under the advanced section.

[n2oah]

Maybe it's an Evva DPX.