Morris Products 13496 Recessed Lighting Hole Saw - Carbide Grit, 6-5/8" Diameter, Used With Juno, Progress Recessed Lighting Hole Saws - Carbide Grit - The perfect Carbide Grit Saw for installing recessed lighting. Carbide Grit Saw is the The perfect choice for quick and easy installation of recessed lighting Carbide grit cutting edge easily cuts holes in ceramic tile, fiberglass, marble, slate etc. Cuts through stucco, lath, and plaster Cuts 1-3/8 deep - through two sheets of 5/8 drywall in one pass to a depth of two inches