Works just as well as Festool bits and costs about half. I have an old kit that didn't include a 4mm nozzle and was making stair railings and needed an efficient way to install small balustrades on 3.5" centers. 4mm dominoes seemed like the best solution and I bought this racket to do it. Still sharp after 200+ holes in red oak. Since the Festool bits are blunt, I will buy CMT bits as a replacement.