Caving
Here is a guide on the essential kit for every Caver.
If you're looking to put together your own SRT kit, here is a handy guide on what you'll need.
Petzl Rocpec Drill
The Petzl Rocpec Drill is a hand drill designed for aid climbers and cavers. The drill accepts SDS drill bits and can drill holes of varying depths and diameters for all types of anchors. The lightweight drill is easy to set-up and dismantle and doesn't need additional tools.
Petzl Stop
The Petzl Stop is a popular choice of descender, thanks to it being easy to use and having the backup of the automatic brake (remember to lock it off if you've stopped though!). It can also be used instead of a chest jammer in an emergency on short pitches. The downside is that it can get a bit warm on long descents of a dry rope (think Alum pot North West) so take a squeezy bottle of water with you!