Special features: 18-piece SDS-PLUS drill/chisel set in aluminum case, consisting of: 1x keyed drill chuck with SDS connection. This keyed drill chuck allows you to use normal drill bits without an SDS-PLUS connection in an SDS-PLUS drill. The chuck has a maximum clamping range of 13mm and is equipped with a keyed drill chuck with spindle. Technical data: 1x key for tightening the keyless chuck. 4x concrete drill bit 110mm SDS+ in mm: [5 / 6 / 8 / 10] 4x concrete drill bit 160mm SDS+ in mm: [6 / 8 / 10 / 12] 2x concrete drill bit 210mm SDS+ in mm: [8 / 10] 2x concrete drill bit 260 mm SDS+ in mm: [12 / 14] 1x point chisel 250mm SDS+ 1x flat chisel 140mm SDS+ in mm: [20] 1x flat chisel 250mm SDS+ in mm: [20] 1x scraping chisel 250 mm SDS+ in mm [40]