Spyder 600837 5-1/4‚ Tungsten Carbide Tipped Deep Cut Hole SawSpyder 600837 Up to 10x more cuts than bi metal hole saws. Up to 5x faster than standard hole saws. Tungsten Carbide Tipped for extended life and clean cuts. Cuts wood, concrete block, brick, cement fiberboard, ceramic wall tile, PVC, and more, (with a Mohs hardness of less than 6). Up to 6 1 4 Depth of Cut. Deep Cut Hole Saws use Hex11 deep cut arbor and pilot bit. For use in standard rotary drills, not for use in hammer drill mode.