VEVOR Adjustable Hole Saw Cutter Kit, 1-5/8" to 8" (40-200 mm), Twin Blade Recessed Hole Saw with PC Dust Shield, Two Replaceable Pilot Drill Bits, for Recessed Lights, Ceiling Speakers, Vent HolesEve more→rything You NeedSet Your SizeProfessional CuttingSecure & CleanSturdy Storage BoxApply AnywhereDust 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