Before people start saying its a pile of pants (the Argos Challenge SDS drill for £30) - I got it because I was completely knackered after doing the best part of sinking a double socket box in a brick wall. Trying to drill with a basic hammer drill and chisel out the bits of brick was a right pain, taking ages and wearing my arm out! The hammer drill was pants and just wasn't up to the job. I decided that spending £30 on a cheapo SDS drill to get this job done was cost effective (especially as it included 2 basic chisels) seeing as I had a number of jobs to do (including replastering) and having a dead arm and wasted time would be more of a problem than £30 spent.
After using it I've noticed two features that it appears to lack. Firstly, you cannot lock it on. This means having to constantly pull the trigger whilst drilling/chiseling - a right pain. Secondly there doesn't appear to be a rotation lock mechanism. Whist I can stop it rotating under power, I can't seem to get it to stop rotating under vibration. Okay on a point chisel but on the flat chisel it can be a problem as you want to keep the flat piece in a certain place and angle..
All told though, I'm pleased with it - it made a good job of breaking up the bricks though it does weight a ton.
It looks like the £50 Performance Power one from B&Q though I noticed their one has a trigger lock - no idea about rotation lock.
Does anyone else have experience of the Challenge SDS Drill and whether there's any way of stopping the bit rotating under vibration when its in hammer only mode?
Thanks
David