After my old key chuck had come for my hammer in the year, had to get a new. I chose this keyless, because the old one despite maintenance (oil) was more and more difficult and the drill no longer festhilt. There are plenty of cheaper to buy here, but quality costs just their price. Only used for light holes. For further concrete SDS drills. Had a look around in hardware stores before, but 1. Expensive and 2. much poorer quality. Have there now feel cheap shopping somewhere in the Eastern Bloc and then here sell high. For this chuck uneigeschränkte buy recommendation.
