A Heavy Duty Circle Cutter designed to cut thick cardboard with a diameter range of 7cm to 30cm is a specialized tool used for accurately cutting circular shapes from thick materials like cardboard, paperboard, or lightweight plywood. The cutter typically features an adjustable radius mechanism, allowing users to set the desired diameter within the 7cm to 30cm range. This tool usually includes a sharp, durable blade that ensures clean, precise cuts, even through thick or dense materials. It's ideal for crafting, packaging, model making, or any other projects where consistent, accurate circular cuts are needed. The heavy-duty construction ensures long-lasting performance and reliability, even under frequent use.