Einhell BT-ID 550 E hammer drill, 550W, max. Strokes 43,200 min-1, drilling capacity (wood / concrete / metal) 25/13/10 mm (tool)
Have more than 100 holes drilled in very hard concrete with 8mm and 10mm standard stone drill (with water cooling) because I did not want to torture my "good" drill. Machine squeak a little now (probably by drilling dust), but it works perf