Cutting Accurate and FastThe centre point is fixed to axis which makes sure hold it securely, cut circles from 20mm to 300mm diameter, easily cut out a roundExcellent MaterialThe main part of the solid plastic, light weight, high strength; adjustment screw is brass components, sturdy2 in 1Includes 6 sparecutter flakes and 2 pencil leads, replace the cutter flake with a pencil lead, can do compass or circle cutterCareful DesignIncludes a built-in cutter flake cover for safety, and a plastic guard to cover the pivot spike when not in use, and ratchet handle design reduces wrist fatigue, and suitable for either left or right handed useUseful CutterCentimeters and inches, two kinds of measurements, designed for cutting circles in rubber, gasket material, thin leather, paper and vinyl