Our Carbide Tipped holesaws work excellently in everything from bricks and ceramic tiles to such things as laminate, fibreglass and hardwood . Fit all power drills, both stationary and portable. Knockout holes allow easy removal of cores. Cutting depth 38 mm ( 1 1/2″ ), ground teeth, 4 teeth per inch. Max. holesize = nominal holesaw size +1,5 mm./ – 0,0.