I use my CMS quite regularly with any one of three different inserts, i.e. for a TS55 plunge saw, a OF1400 router and a PS300 jig saw. I am always looking for a suitable screwdriver, as I rarely have any, let alone suitably large coins in my pocket, to tighten the two insert clamping screws. The other day, I was looking at sanders at one of the local Festool agents and spotted the below Pocket Wrench II tool there. I bought one, modified the can opener end of the tool into a nicely fitting screw driver. I was going to use just a magnet to hold the tool when not in use, but it proved to be less than satisfactory. A stick on hook fixed that. I have found that the multi wrench cutout on the tool is also useful to tighten other fittings that I use on the CMS.