Do these things actually work?
Also they vary wildly in price. Is this one worth getting?
It's certainly cheap enough, but do you need something to hold onto to stop the whole thing revolving?
Is it worth spending the extra for this:
And when it says impact rated for that second one, surely the impact is in the wrong direction?
It's only for the occasional job, including one coming up shortly where I will be drilling a few holes into bricks.