I had tried my old C12 with 3ah NiMH battery with a professional 4 blade drywall mixer with a 5 gallon bucket loaded about half way with setting compound and different amounts of water as I did the mix. It has a 1/2" shaft. Got a lot of beeping so I switched to my Makita electric D-handle with side handle to git R done. Also found it a little tricky without a side handle on my Festool drill from the torque reaction.
i dont think any battery drill would stand up to that sort of mixing. if the festool drill will stand up to tile adhesive i think they should try that compound for sticking insulated plaster slabs, that stuff is serious tack [scared]
i dont think any battery drill would stand up to that sort of mixing. if the festool drill will stand up to tile adhesive i think they should try that compound for sticking insulated plaster slabs, that stuff is serious tack [scared]
This was before I had gotten my 18v Milwaukee tools. I've used them with the side handle to do mixes just fine. Maybe the newer Festool drills and the upcoming ones won't have the same problem as my C12 did.
we use a skim coat (drywall) whisk in an old drill that my father has for years for the job. it is an old wolfe drill. we have is on the slower speed as the top speed would send the skim all over the room [eek]. when we mix the insulated slab sticking compound you can hear that very powerfull drill slow down and the noise lever will change as it struggles to mix the stuff. this stuff is way thicker than tile adhesive