Type 3832 Carbide tipped holesaws work excellently in everything from bricks, ceramic tiles, laminate, fibreglass and hardwood as well as difficult to cut steel applications.Fit all power drills, both stationary and portable.Knockout holes allow easy removal of cores.Cutting depth max 38 mm (1 1/2”) 4 teeth per inch.Max. holesize = nominal holesaw size +1.5 mm./- 0.0 mm.