The Logan Foamwerks Circle Cutter allows you to cut perfect circles from 2.5mm / 1” to up to 15.2mm / 6” dia. Centre depth indicator shows blade progression for board depths from 3.1mm / 1/8” up to 12.mm / 1/2”.Features centering pin, magnetic blade slot and clear acrylic safety dome. Includes five blades. Dome is 210mm dia. Use WA blades.IMPORTANT: Always use a scrap piece of foam board underneath the piece you are cutting with a Foam Werks tool. This protects the tool and extends the life of the blades.