Hole Pro X-230+ 1-7/8" to 9-1/4" Heavy Duty Twin Blade Adjustable Hole Saw Cutter. Strong ½” Cross bar & Heat Treated Shaft - Cut Plywood Drywall OSB Plastics MDF & Hardie Board

Hole Pro X-305 Twin Blade Hole Saw Kit: Adjusts to cut all size holes between 1-7/8 to 12" Cuts Plywood Sheetrock Plaster Fiberglass OSB Plastic MDF Hardie: Includes Tungsten Carbide & HSS blades

HolePro T-200 1-5/8" to 8" TWIN BLADE Adjustable Hole Saw Cutter for Recessed Lights Speakers. HSS Blades use ¼ Drill Power of a Hole Saw to Cut Sheetrock Plastic Soft-woods NO PLYWOOD/PLASTER