& nbsp; Core bit can drill SDS PLUS MAX SDS Plus: 10mm holder & nbsp; SDS Max: 18mm recording & nbsp; Drill bit for hammer drill with SDS holder: for concrete, masonry, natural stone, clinker, etc. Features / advantages: - high drilling capacity (advance) - high stability - hard metal teeth (cutting) - very smooth running - usable depth: 50mm Application note: Please select the desired SDS extension / attachment for each drill bit. Without an extension there is no SDS recording. & nbsp;