How many charges does a toolbox deplete when sabotageing?

Is it just equal to the amount of time/charges are on a hook? (2.5 at base?) never really looked into it post-toolbox change.

If so, would an ultra rare addon, that makes toolboxes infinitely be able to sabotage (and only sabotage, charges deplete as normal on generators) be out of the question? an equivalent to the brand new part if you will. or an addon that's used up in place of a sabotage. could also increase the time to sabotage slightly, in order to balance out the infinite uses of sabotaging during a match, so that you can't just bring in an alex's toolbox and infinitely sabotage things in under 2s.

Because sabotaging within the current state of the game is super useful, but super situational outside of dedicated builds. imo could be buffed around different speeds of sabotage - ie a quick sabo could break the hook in 2-1s, and the hook could regenerate in 30s or even 15. but a long sabotage with a toolbox dedicated to destroying hooks, could leave them broken for longer, and be more about "pre-breaking" hooks akin to how sabo used to work, but still a bit faster idk.

Sabo could be based around a "threshold" system, where 2.5 is the base, reduced through addons and specific toolboxes like the alexs, where once you hit that threshold you break the hook once you let go. but you can sabo infinitely (not actually infinitely, but theoretically) in order to break the hook for a longer period of time with diminishing returns on an exponent style scalar. ie you sabo for the 2.5s, and the hook breaks for 15-30s. but you sabo for 5s, the hook breaks for an extra 5-10s, and you sabo for 10s, you break the hook for an extra 5, then you sabo for 15s, you break the hook for an extra 3s. and so on and so on.