Olfa Heavy Duty Rotary Circle Cutter, CMP-2 Produce perfect circles 3 inch to 12 inch diameter When you need to cut perfect circles, rely on the OLFA CMP-2 Heavy-Duty Circle Cutter to deliver precision results. This tool is easy to use and adjusts with a slide to produce circles from 3- inch up to 12-inch in diameter (7.6 cm to 30.5 cm). Whether you need a full or half-circle, adjust the preloaded snap blade for boundless uses. The tough silver blade offers eight (8) segments per blade for volume cutting. Simply snap for a fresh edge as needed. Adjust the depth of the blade with the ratchet-lock wheel to cut through materials with a variety of thicknesses, including rubber gaskets, paper, drywall, acetates, and more. Use with: - Acetates - Carpet - Drywall - Mat board - Thin plywood - Can Lights- Corrugate- Gasket Materials- Foam board Paper- Veneers and more