The limits rather from the lack of accessories and the rather limited number of strands Indeed, for a good start must be a supply of wicks sds quick (careful, expensive ...) because the Uneo is not compatible either with the ordinary locks or with sds more. It only goes up to 10mm diameter and does not drop below 5mm. NB scam Small Business: it stated that the device comes not only with the mandrel sds quick, but also with an additional chuck hexagon to use non sds ordinary locks. Do not try to find a 2nd chuck, there is not. Information taken in a DIY store: this chuck exists, can be ordered at Bosch. Still according to the vendor, its usefulness is relative (if you put the hex chuck on the Uneo can no longer use the percussion, so no holes in concrete). Otherwise, the rig is lightweight, it was well in hand. The screwing-unscrewing function is OK .And the battery is top for loading in 1 hour.