Welcome to
![:cheers: :cheers:](https://forum.multitool.org/Smileys/default/cheers.gif)
A flat driver from a Wave or Rebar or perhaps the Micro Bit driver should work in there, space is kind of limited for height, so it does limit the options
![:think: :think:](https://forum.multitool.org/Smileys/default/thinking.gif)
I have never modded a Signal though and most do keep the awl, so I haven't personally seen anyone replace it
![:think: :think:](https://forum.multitool.org/Smileys/default/thinking.gif)
either way, good luck and I hope you can find something to your liking
![:salute: :salute:](https://forum.multitool.org/Smileys/default/salute.gif)
also, let us know what you do end up deciding and pics are always awesome
![Woohoo :woohoo:](https://forum.multitool.org/Smileys/default/woohoo.gif)