Features:- [Scope of Applications]: Cuts plywood, sheetrock, veneer, cement board, slate, ceiling tiles, etc.- [Size Adjustable]: Double blade hole cutter applied 1-5/8inch to 8inch (40 - 200mm) or 1-5/8inch to 12inch (40 - 300mm) holes with depth up to 3/4inch(19mm) from one side, 1-1/8inch(30mm) f..