This Screwdriver Holder is more space effective since you can just push or pull the screwdriver right in or out.
Fits most screwdrivers and they sit tight and doesn't wiggle. To attach it to the HSW you need the empty inserts*.
There are 4 different versions: 1,4,6 and 8.
No supports needed
Edit:
Added one for IKEA Skadis
*Added models that changed so you don't need the empty inserts.