Quote Originally Posted by CollinB View Post
Well, you don't need a special tool for the Pentax, but you do need something to push the spring back when removing it from the body.
Some I know just remove the spring and attach it somewhat permanently to the lens (Loctite would do the job).
It's expensive per lens but saves a lot of hassle removing the lens, and then the mount, to go back to a K lens.
I've always managed with just my fingernail.

Ian