Yeah for that price it should be good stuff..not elcheapo crap.. i find the cannot drop by during reno kinda thing could be used to conceal things like substandard cables. Once everything connected and installed nobody will be any wiser

The drill bit used also makes a difference. Carbide SDS bits last much longer. Elcheapo round shank bits botak very fast. I also drilled a lot of concrete walls and ceiling slabs and I don't think you can wear out SDS carbide bits in just a single hole for finger size 10mm in newer concrete..unless the building is 50 years' type like Rifle Range flat in Penang.