VEVOR Adjustable Hole Saw Cutter Kit, 1-5/8" to 8" (40-200 mm), Two Replaceable Pilot Drill Bits, Twin Blade Recessed Hole Saw with PC Dust Shield, for Recessed Lights, Ceiling Speakers, Vent Holes Everything You Need Set Your Size Professional Cutting Secure & Clean Sturdy Storage Box Apply Anywhere Dust Shield Material: PC,Storage Box Dimensions(L x W x H): 13.39 x 13.39 x 4.72'' / 34 x 34 x 12 cm,Cutting Hole Diameter: 1-5/8" to 8" / 40 mm to 200 mm,Cutting Depth: 1-1/8" / 30 mm,Model: FJKKQ-40-200,Drill Bits Size: 5/32'', 3/16'',1/4'', 5/16'', 3/8''(4, 5, 6, 8, 10 mm),Dust Shield Dimensions(L x W x H): 11.81 x 11.81 x 3.94'' / 30 x 30 x 10 cm,Dust Shield Bearing Type: 6203Z Ball Bearing,Pilot Bit Material: Steel,Storage Box Material: HDPE,Hole Saw Dimensions(L x W): 9.45 x 9.06'' / 24 x 23 cm,Cutting Blades Material: Steel