The SDS quick-release system is the established standard connection for hammer drill bits today. It guarantees best-in-class power transfer from the drilling system while at the same time offering fast, simple and safe clamping of the drill bit in the hammer drill. Depending on the task, there is the most widespread format, SDS-plus with a diameter of approx. 10 mm for hammer drills < 5 kg and SDS-max for hammer drills > 5 kg with a diameter of approx. 18 mm.