This model is designed to work with a SOG Powerpint multitool with the pocket clip and keyring loop removed. With the pocket clip installed, the part will still work - but you will find it bottoms out on the clip prematurely, so you will want to make sure you are using either long bits, or a bit extender.
This model has several advantages -
Gif and more pictures:
https://www.reddit.com/r/multitools/comments/10kvttb/i_solved_the_sog_powerpints_bit_holder_locking/?
The author marked this model as their own original creation.